20163555490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1181}}^1\times {\mathrm{2153}}^1$

素因数の和:3415

約数の個数: 64

約数和(自身を含む): 39779141472

約数和(自身を除く): 19615585982

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1181, 1586, 2153, 2362, 3965, 4306, 5905, 7930, 10765, 11810, 15353, 21530, 27989, 30706, 55978, 72041, 76765, 131333, 139945, 144082, 153530, 262666, 279890, 360205, 656665, 720410, 936533, 1313330, 1707329, 1873066, 2542693, 3414658, 4682665, 5085386, 8536645, 9365330, 12713465, 17073290, 25426930, 33055009, 66110018, 155104273, 165275045, 310208546, 330550090, 775521365, 1551042730, 2016355549, 4032711098, 10081777745, 20163555490]

約数ペア:

[(1, 20163555490), (2, 10081777745), (5, 4032711098), (10, 2016355549), (13, 1551042730), (26, 775521365), (61, 330550090), (65, 310208546), (122, 165275045), (130, 155104273), (305, 66110018), (610, 33055009), (793, 25426930), (1181, 17073290), (1586, 12713465), (2153, 9365330), (2362, 8536645), (3965, 5085386), (4306, 4682665), (5905, 3414658), (7930, 2542693), (10765, 1873066), (11810, 1707329), (15353, 1313330), (21530, 936533), (27989, 720410), (30706, 656665), (55978, 360205), (72041, 279890), (76765, 262666), (131333, 153530), (139945, 144082)]