22554220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 28813460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 223, 260, 389, 446, 778, 892, 1115, 1556, 1945, 2230, 2899, 3890, 4460, 5057, 5798, 7780, 10114, 11596, 14495, 20228, 25285, 28990, 50570, 57980, 86747, 101140, 173494, 346988, 433735, 867470, 1127711, 1734940, 2255422, 4510844, 5638555, 11277110, 22554220]

約数ペア:

[(1, 22554220), (2, 11277110), (4, 5638555), (5, 4510844), (10, 2255422), (13, 1734940), (20, 1127711), (26, 867470), (52, 433735), (65, 346988), (130, 173494), (223, 101140), (260, 86747), (389, 57980), (446, 50570), (778, 28990), (892, 25285), (1115, 20228), (1556, 14495), (1945, 11596), (2230, 10114), (2899, 7780), (3890, 5798), (4460, 5057)]