20135180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1801}}^1$

素因数の和:1866

約数の個数: 48

約数和(自身を含む): 46621344

約数和(自身を除く): 26486164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 1801, 2236, 2795, 3602, 5590, 7204, 9005, 11180, 18010, 23413, 36020, 46826, 77443, 93652, 117065, 154886, 234130, 309772, 387215, 468260, 774430, 1006759, 1548860, 2013518, 4027036, 5033795, 10067590, 20135180]

約数ペア:

[(1, 20135180), (2, 10067590), (4, 5033795), (5, 4027036), (10, 2013518), (13, 1548860), (20, 1006759), (26, 774430), (43, 468260), (52, 387215), (65, 309772), (86, 234130), (130, 154886), (172, 117065), (215, 93652), (260, 77443), (430, 46826), (559, 36020), (860, 23413), (1118, 18010), (1801, 11180), (2236, 9005), (2795, 7204), (3602, 5590)]