18754902010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{139121}}^1$

素因数の和:139219

約数の個数: 64

約数和(自身を含む): 39125558304

約数和(自身を除く): 20370656294

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 61, 65, 85, 122, 130, 170, 221, 305, 442, 610, 793, 1037, 1105, 1586, 2074, 2210, 3965, 5185, 7930, 10370, 13481, 26962, 67405, 134810, 139121, 278242, 695605, 1391210, 1808573, 2365057, 3617146, 4730114, 8486381, 9042865, 11825285, 16972762, 18085730, 23650570, 30745741, 42431905, 61491482, 84863810, 110322953, 144268477, 153728705, 220645906, 288536954, 307457410, 551614765, 721342385, 1103229530, 1442684770, 1875490201, 3750980402, 9377451005, 18754902010]

約数ペア:

[(1, 18754902010), (2, 9377451005), (5, 3750980402), (10, 1875490201), (13, 1442684770), (17, 1103229530), (26, 721342385), (34, 551614765), (61, 307457410), (65, 288536954), (85, 220645906), (122, 153728705), (130, 144268477), (170, 110322953), (221, 84863810), (305, 61491482), (442, 42431905), (610, 30745741), (793, 23650570), (1037, 18085730), (1105, 16972762), (1586, 11825285), (2074, 9042865), (2210, 8486381), (3965, 4730114), (5185, 3617146), (7930, 2365057), (10370, 1808573), (13481, 1391210), (26962, 695605), (67405, 278242), (134810, 139121)]