20651041320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{2861}}^1$

素因数の和:3556

約数の個数: 256

約数和(自身を含む): 76392046080

約数和(自身を除く): 55741004760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 661, 728, 780, 840, 910, 1092, 1322, 1365, 1560, 1820, 1983, 2184, 2644, 2730, 2861, 3305, 3640, 3966, 4627, 5288, 5460, 5722, 6610, 7932, 8583, 8593, 9254, 9915, 10920, 11444, 13220, 13881, 14305, 15864, 17166, 17186, 18508, 19830, 20027, 22888, 23135, 25779, 26440, 27762, 28610, 34332, 34372, 37016, 37193, 39660, 40054, 42915, 42965, 46270, 51558, 55524, 57220, 60081, 60151, 68664, 68744, 69405, 74386, 79320, 80108, 85830, 85930, 92540, 100135, 103116, 111048, 111579, 114440, 120162, 120302, 128895, 138810, 148772, 160216, 171660, 171860, 180453, 185080, 185965, 200270, 206232, 223158, 240324, 240604, 257790, 260351, 277620, 297544, 300405, 300755, 343320, 343720, 360906, 371930, 400540, 446316, 480648, 481208, 515580, 520702, 555240, 557895, 600810, 601510, 721812, 743860, 781053, 801080, 892632, 902265, 1031160, 1041404, 1115790, 1201620, 1203020, 1301755, 1443624, 1487720, 1562106, 1804530, 1891121, 2082808, 2231580, 2403240, 2406040, 2603510, 3124212, 3609060, 3782242, 3905265, 4463160, 5207020, 5673363, 6248424, 7218120, 7564484, 7810530, 9455605, 10414040, 11346726, 13237847, 15128968, 15621060, 18911210, 22693452, 24584573, 26475694, 28366815, 31242120, 37822420, 39713541, 45386904, 49169146, 52951388, 56733630, 66189235, 73753719, 75644840, 79427082, 98338292, 105902776, 113467260, 122922865, 132378470, 147507438, 158854164, 172092011, 196676584, 198567705, 226934520, 245845730, 264756940, 295014876, 317708328, 344184022, 368768595, 397135410, 491691460, 516276033, 529513880, 590029752, 688368044, 737537190, 794270820, 860460055, 983382920, 1032552066, 1376736088, 1475074380, 1588541640, 1720920110, 2065104132, 2581380165, 2950148760, 3441840220, 4130208264, 5162760330, 6883680440, 10325520660, 20651041320]

約数ペア:

[(1, 20651041320), (2, 10325520660), (3, 6883680440), (4, 5162760330), (5, 4130208264), (6, 3441840220), (7, 2950148760), (8, 2581380165), (10, 2065104132), (12, 1720920110), (13, 1588541640), (14, 1475074380), (15, 1376736088), (20, 1032552066), (21, 983382920), (24, 860460055), (26, 794270820), (28, 737537190), (30, 688368044), (35, 590029752), (39, 529513880), (40, 516276033), (42, 491691460), (52, 397135410), (56, 368768595), (60, 344184022), (65, 317708328), (70, 295014876), (78, 264756940), (84, 245845730), (91, 226934520), (104, 198567705), (105, 196676584), (120, 172092011), (130, 158854164), (140, 147507438), (156, 132378470), (168, 122922865), (182, 113467260), (195, 105902776), (210, 98338292), (260, 79427082), (273, 75644840), (280, 73753719), (312, 66189235), (364, 56733630), (390, 52951388), (420, 49169146), (455, 45386904), (520, 39713541), (546, 37822420), (661, 31242120), (728, 28366815), (780, 26475694), (840, 24584573), (910, 22693452), (1092, 18911210), (1322, 15621060), (1365, 15128968), (1560, 13237847), (1820, 11346726), (1983, 10414040), (2184, 9455605), (2644, 7810530), (2730, 7564484), (2861, 7218120), (3305, 6248424), (3640, 5673363), (3966, 5207020), (4627, 4463160), (5288, 3905265), (5460, 3782242), (5722, 3609060), (6610, 3124212), (7932, 2603510), (8583, 2406040), (8593, 2403240), (9254, 2231580), (9915, 2082808), (10920, 1891121), (11444, 1804530), (13220, 1562106), (13881, 1487720), (14305, 1443624), (15864, 1301755), (17166, 1203020), (17186, 1201620), (18508, 1115790), (19830, 1041404), (20027, 1031160), (22888, 902265), (23135, 892632), (25779, 801080), (26440, 781053), (27762, 743860), (28610, 721812), (34332, 601510), (34372, 600810), (37016, 557895), (37193, 555240), (39660, 520702), (40054, 515580), (42915, 481208), (42965, 480648), (46270, 446316), (51558, 400540), (55524, 371930), (57220, 360906), (60081, 343720), (60151, 343320), (68664, 300755), (68744, 300405), (69405, 297544), (74386, 277620), (79320, 260351), (80108, 257790), (85830, 240604), (85930, 240324), (92540, 223158), (100135, 206232), (103116, 200270), (111048, 185965), (111579, 185080), (114440, 180453), (120162, 171860), (120302, 171660), (128895, 160216), (138810, 148772)]