1118499920

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{196919}}^1$

素因数の和:197003

約数の個数: 40

約数和(自身を含む): 2637152640

約数和(自身を除く): 1518652720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 196919, 393838, 787676, 984595, 1575352, 1969190, 3150704, 3938380, 7876760, 13981249, 15753520, 27962498, 55924996, 69906245, 111849992, 139812490, 223699984, 279624980, 559249960, 1118499920]

約数ペア:

[(1, 1118499920), (2, 559249960), (4, 279624980), (5, 223699984), (8, 139812490), (10, 111849992), (16, 69906245), (20, 55924996), (40, 27962498), (71, 15753520), (80, 13981249), (142, 7876760), (284, 3938380), (355, 3150704), (568, 1969190), (710, 1575352), (1136, 984595), (1420, 787676), (2840, 393838), (5680, 196919)]