90675860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{643}}^1$

素因数の和:1304

約数の個数: 48

約数和(自身を含む): 208377792

約数和(自身を除く): 117701932

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 641, 643, 1282, 1286, 2564, 2572, 3205, 3215, 6410, 6430, 7051, 7073, 12820, 12860, 14102, 14146, 28204, 28292, 35255, 35365, 70510, 70730, 141020, 141460, 412163, 824326, 1648652, 2060815, 4121630, 4533793, 8243260, 9067586, 18135172, 22668965, 45337930, 90675860]

約数ペア:

[(1, 90675860), (2, 45337930), (4, 22668965), (5, 18135172), (10, 9067586), (11, 8243260), (20, 4533793), (22, 4121630), (44, 2060815), (55, 1648652), (110, 824326), (220, 412163), (641, 141460), (643, 141020), (1282, 70730), (1286, 70510), (2564, 35365), (2572, 35255), (3205, 28292), (3215, 28204), (6410, 14146), (6430, 14102), (7051, 12860), (7073, 12820)]