28971340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23747}}^1$

素因数の和:23817

約数の個数: 24

約数和(自身を含む): 61839792

約数和(自身を除く): 32868452

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 23747, 47494, 94988, 118735, 237470, 474940, 1448567, 2897134, 5794268, 7242835, 14485670, 28971340]

約数ペア:

[(1, 28971340), (2, 14485670), (4, 7242835), (5, 5794268), (10, 2897134), (20, 1448567), (61, 474940), (122, 237470), (244, 118735), (305, 94988), (610, 47494), (1220, 23747)]