28634440

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2063}}^1$

素因数の和:2421

約数の個数: 32

約数和(自身を含む): 64644480

約数和(自身を除く): 36010040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2063, 2776, 3470, 4126, 6940, 8252, 10315, 13880, 16504, 20630, 41260, 82520, 715861, 1431722, 2863444, 3579305, 5726888, 7158610, 14317220, 28634440]

約数ペア:

[(1, 28634440), (2, 14317220), (4, 7158610), (5, 5726888), (8, 3579305), (10, 2863444), (20, 1431722), (40, 715861), (347, 82520), (694, 41260), (1388, 20630), (1735, 16504), (2063, 13880), (2776, 10315), (3470, 8252), (4126, 6940)]