20106580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4549}}^1$

素因数の和:4588

約数の個数: 48

約数和(自身を含む): 48157200

約数和(自身を除く): 28050620

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 4549, 9098, 18196, 22745, 45490, 59137, 77333, 90980, 118274, 154666, 236548, 295685, 309332, 386665, 591370, 773330, 1005329, 1182740, 1546660, 2010658, 4021316, 5026645, 10053290, 20106580]

約数ペア:

[(1, 20106580), (2, 10053290), (4, 5026645), (5, 4021316), (10, 2010658), (13, 1546660), (17, 1182740), (20, 1005329), (26, 773330), (34, 591370), (52, 386665), (65, 309332), (68, 295685), (85, 236548), (130, 154666), (170, 118274), (221, 90980), (260, 77333), (340, 59137), (442, 45490), (884, 22745), (1105, 18196), (2210, 9098), (4420, 4549)]