20752560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:116

約数の個数: 240

約数和(自身を含む): 77182560

約数和(自身を除く): 56430000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 37, 38, 40, 41, 45, 48, 57, 60, 72, 74, 76, 80, 82, 90, 95, 111, 114, 120, 123, 144, 148, 152, 164, 171, 180, 185, 190, 205, 222, 228, 240, 246, 285, 296, 304, 328, 333, 342, 360, 369, 370, 380, 410, 444, 456, 492, 555, 570, 592, 615, 656, 666, 684, 703, 720, 738, 740, 760, 779, 820, 855, 888, 912, 984, 1110, 1140, 1230, 1332, 1368, 1406, 1476, 1480, 1517, 1520, 1558, 1640, 1665, 1710, 1776, 1845, 1968, 2109, 2220, 2280, 2337, 2460, 2664, 2736, 2812, 2952, 2960, 3034, 3116, 3280, 3330, 3420, 3515, 3690, 3895, 4218, 4440, 4551, 4560, 4674, 4920, 5328, 5624, 5904, 6068, 6232, 6327, 6660, 6840, 7011, 7030, 7380, 7585, 7790, 8436, 8880, 9102, 9348, 9840, 10545, 11248, 11685, 12136, 12464, 12654, 13320, 13653, 13680, 14022, 14060, 14760, 15170, 15580, 16872, 18204, 18696, 21090, 22755, 23370, 24272, 25308, 26640, 27306, 28044, 28120, 28823, 29520, 30340, 31160, 31635, 33744, 35055, 36408, 37392, 42180, 45510, 46740, 50616, 54612, 56088, 56240, 57646, 60680, 62320, 63270, 68265, 70110, 72816, 84360, 86469, 91020, 93480, 101232, 109224, 112176, 115292, 121360, 126540, 136530, 140220, 144115, 168720, 172938, 182040, 186960, 218448, 230584, 253080, 259407, 273060, 280440, 288230, 345876, 364080, 432345, 461168, 506160, 518814, 546120, 560880, 576460, 691752, 864690, 1037628, 1092240, 1152920, 1297035, 1383504, 1729380, 2075256, 2305840, 2594070, 3458760, 4150512, 5188140, 6917520, 10376280, 20752560]

約数ペア:

[(1, 20752560), (2, 10376280), (3, 6917520), (4, 5188140), (5, 4150512), (6, 3458760), (8, 2594070), (9, 2305840), (10, 2075256), (12, 1729380), (15, 1383504), (16, 1297035), (18, 1152920), (19, 1092240), (20, 1037628), (24, 864690), (30, 691752), (36, 576460), (37, 560880), (38, 546120), (40, 518814), (41, 506160), (45, 461168), (48, 432345), (57, 364080), (60, 345876), (72, 288230), (74, 280440), (76, 273060), (80, 259407), (82, 253080), (90, 230584), (95, 218448), (111, 186960), (114, 182040), (120, 172938), (123, 168720), (144, 144115), (148, 140220), (152, 136530), (164, 126540), (171, 121360), (180, 115292), (185, 112176), (190, 109224), (205, 101232), (222, 93480), (228, 91020), (240, 86469), (246, 84360), (285, 72816), (296, 70110), (304, 68265), (328, 63270), (333, 62320), (342, 60680), (360, 57646), (369, 56240), (370, 56088), (380, 54612), (410, 50616), (444, 46740), (456, 45510), (492, 42180), (555, 37392), (570, 36408), (592, 35055), (615, 33744), (656, 31635), (666, 31160), (684, 30340), (703, 29520), (720, 28823), (738, 28120), (740, 28044), (760, 27306), (779, 26640), (820, 25308), (855, 24272), (888, 23370), (912, 22755), (984, 21090), (1110, 18696), (1140, 18204), (1230, 16872), (1332, 15580), (1368, 15170), (1406, 14760), (1476, 14060), (1480, 14022), (1517, 13680), (1520, 13653), (1558, 13320), (1640, 12654), (1665, 12464), (1710, 12136), (1776, 11685), (1845, 11248), (1968, 10545), (2109, 9840), (2220, 9348), (2280, 9102), (2337, 8880), (2460, 8436), (2664, 7790), (2736, 7585), (2812, 7380), (2952, 7030), (2960, 7011), (3034, 6840), (3116, 6660), (3280, 6327), (3330, 6232), (3420, 6068), (3515, 5904), (3690, 5624), (3895, 5328), (4218, 4920), (4440, 4674), (4551, 4560)]