51656020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3257}}^1$

素因数の和:3340

約数の個数: 48

約数和(自身を含む): 118773648

約数和(自身を除く): 67117628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3257, 3965, 6514, 7930, 13028, 15860, 16285, 32570, 42341, 65140, 84682, 169364, 198677, 211705, 397354, 423410, 794708, 846820, 993385, 1986770, 2582801, 3973540, 5165602, 10331204, 12914005, 25828010, 51656020]

約数ペア:

[(1, 51656020), (2, 25828010), (4, 12914005), (5, 10331204), (10, 5165602), (13, 3973540), (20, 2582801), (26, 1986770), (52, 993385), (61, 846820), (65, 794708), (122, 423410), (130, 397354), (244, 211705), (260, 198677), (305, 169364), (610, 84682), (793, 65140), (1220, 42341), (1586, 32570), (3172, 16285), (3257, 15860), (3965, 13028), (6514, 7930)]