20426830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{503}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 17893298

約数列:

[1, 2, 5, 10, 31, 62, 131, 155, 262, 310, 503, 655, 1006, 1310, 2515, 4061, 5030, 8122, 15593, 20305, 31186, 40610, 65893, 77965, 131786, 155930, 329465, 658930, 2042683, 4085366, 10213415, 20426830]

約数ペア:

[(1, 20426830), (2, 10213415), (5, 4085366), (10, 2042683), (31, 658930), (62, 329465), (131, 155930), (155, 131786), (262, 77965), (310, 65893), (503, 40610), (655, 31186), (1006, 20305), (1310, 15593), (2515, 8122), (4061, 5030)]