20157626665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1\times {\mathrm{563}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 28287532800

約数和(自身を除く): 8129906135

約数列:

[1, 5, 11, 17, 55, 85, 149, 187, 257, 563, 745, 935, 1285, 1639, 2533, 2815, 2827, 4369, 6193, 8195, 9571, 12665, 14135, 21845, 27863, 30965, 38293, 47855, 48059, 83887, 105281, 139315, 144691, 191465, 240295, 419435, 421223, 526405, 650981, 723455, 922757, 1426079, 1591601, 2106115, 2459747, 3254905, 4613785, 7130395, 7160791, 7958005, 12298735, 15686869, 21558959, 27057217, 35803955, 78434345, 107794795, 135286085, 237148549, 366502303, 1185742745, 1832511515, 4031525333, 20157626665]

約数ペア:

[(1, 20157626665), (5, 4031525333), (11, 1832511515), (17, 1185742745), (55, 366502303), (85, 237148549), (149, 135286085), (187, 107794795), (257, 78434345), (563, 35803955), (745, 27057217), (935, 21558959), (1285, 15686869), (1639, 12298735), (2533, 7958005), (2815, 7160791), (2827, 7130395), (4369, 4613785), (6193, 3254905), (8195, 2459747), (9571, 2106115), (12665, 1591601), (14135, 1426079), (21845, 922757), (27863, 723455), (30965, 650981), (38293, 526405), (47855, 421223), (48059, 419435), (83887, 240295), (105281, 191465), (139315, 144691)]