20213276720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{13159}}^1$

素因数の和:13403

約数の個数: 160

約数和(自身を含む): 58119613440

約数和(自身を除く): 37906336720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 211, 260, 280, 364, 422, 455, 520, 560, 728, 844, 910, 1040, 1055, 1456, 1477, 1688, 1820, 2110, 2743, 2954, 3376, 3640, 4220, 5486, 5908, 7280, 7385, 8440, 10972, 11816, 13159, 13715, 14770, 16880, 19201, 21944, 23632, 26318, 27430, 29540, 38402, 43888, 52636, 54860, 59080, 65795, 76804, 92113, 96005, 105272, 109720, 118160, 131590, 153608, 171067, 184226, 192010, 210544, 219440, 263180, 307216, 342134, 368452, 384020, 460565, 526360, 684268, 736904, 768040, 855335, 921130, 1052720, 1197469, 1368536, 1473808, 1536080, 1710670, 1842260, 2394938, 2737072, 2776549, 3421340, 3684520, 4789876, 5553098, 5987345, 6842680, 7369040, 9579752, 11106196, 11974690, 13685360, 13882745, 19159504, 19435843, 22212392, 23949380, 27765490, 36095137, 38871686, 44424784, 47898760, 55530980, 72190274, 77743372, 95797520, 97179215, 111061960, 144380548, 155486744, 180475685, 194358430, 222123920, 252665959, 288761096, 310973488, 360951370, 388716860, 505331918, 577522192, 721902740, 777433720, 1010663836, 1263329795, 1443805480, 1554867440, 2021327672, 2526659590, 2887610960, 4042655344, 5053319180, 10106638360, 20213276720]

約数ペア:

[(1, 20213276720), (2, 10106638360), (4, 5053319180), (5, 4042655344), (7, 2887610960), (8, 2526659590), (10, 2021327672), (13, 1554867440), (14, 1443805480), (16, 1263329795), (20, 1010663836), (26, 777433720), (28, 721902740), (35, 577522192), (40, 505331918), (52, 388716860), (56, 360951370), (65, 310973488), (70, 288761096), (80, 252665959), (91, 222123920), (104, 194358430), (112, 180475685), (130, 155486744), (140, 144380548), (182, 111061960), (208, 97179215), (211, 95797520), (260, 77743372), (280, 72190274), (364, 55530980), (422, 47898760), (455, 44424784), (520, 38871686), (560, 36095137), (728, 27765490), (844, 23949380), (910, 22212392), (1040, 19435843), (1055, 19159504), (1456, 13882745), (1477, 13685360), (1688, 11974690), (1820, 11106196), (2110, 9579752), (2743, 7369040), (2954, 6842680), (3376, 5987345), (3640, 5553098), (4220, 4789876), (5486, 3684520), (5908, 3421340), (7280, 2776549), (7385, 2737072), (8440, 2394938), (10972, 1842260), (11816, 1710670), (13159, 1536080), (13715, 1473808), (14770, 1368536), (16880, 1197469), (19201, 1052720), (21944, 921130), (23632, 855335), (26318, 768040), (27430, 736904), (29540, 684268), (38402, 526360), (43888, 460565), (52636, 384020), (54860, 368452), (59080, 342134), (65795, 307216), (76804, 263180), (92113, 219440), (96005, 210544), (105272, 192010), (109720, 184226), (118160, 171067), (131590, 153608)]