91217980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1327}}^1$

素因数の和:1834

約数の個数: 48

約数和(自身を含む): 219534336

約数和(自身を除く): 128316356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 1327, 1964, 2455, 2654, 3437, 4910, 5308, 6635, 6874, 9289, 9820, 13270, 13748, 17185, 18578, 26540, 34370, 37156, 46445, 68740, 92890, 185780, 651557, 1303114, 2606228, 3257785, 4560899, 6515570, 9121798, 13031140, 18243596, 22804495, 45608990, 91217980]

約数ペア:

[(1, 91217980), (2, 45608990), (4, 22804495), (5, 18243596), (7, 13031140), (10, 9121798), (14, 6515570), (20, 4560899), (28, 3257785), (35, 2606228), (70, 1303114), (140, 651557), (491, 185780), (982, 92890), (1327, 68740), (1964, 46445), (2455, 37156), (2654, 34370), (3437, 26540), (4910, 18578), (5308, 17185), (6635, 13748), (6874, 13270), (9289, 9820)]