12454520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 30935520

約数和(自身を除く): 18481000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 557, 559, 860, 1114, 1118, 1720, 2228, 2236, 2785, 2795, 4456, 4472, 5570, 5590, 7241, 11140, 11180, 14482, 22280, 22360, 23951, 28964, 36205, 47902, 57928, 72410, 95804, 119755, 144820, 191608, 239510, 289640, 311363, 479020, 622726, 958040, 1245452, 1556815, 2490904, 3113630, 6227260, 12454520]

約数ペア:

[(1, 12454520), (2, 6227260), (4, 3113630), (5, 2490904), (8, 1556815), (10, 1245452), (13, 958040), (20, 622726), (26, 479020), (40, 311363), (43, 289640), (52, 239510), (65, 191608), (86, 144820), (104, 119755), (130, 95804), (172, 72410), (215, 57928), (260, 47902), (344, 36205), (430, 28964), (520, 23951), (557, 22360), (559, 22280), (860, 14482), (1114, 11180), (1118, 11140), (1720, 7241), (2228, 5590), (2236, 5570), (2785, 4472), (2795, 4456)]