81982920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{2521}}^1$

素因数の和:2806

約数の個数: 64

約数和(自身を含む): 246954240

約数和(自身を除く): 164971320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 271, 542, 813, 1084, 1355, 1626, 2168, 2521, 2710, 3252, 4065, 5042, 5420, 6504, 7563, 8130, 10084, 10840, 12605, 15126, 16260, 20168, 25210, 30252, 32520, 37815, 50420, 60504, 75630, 100840, 151260, 302520, 683191, 1366382, 2049573, 2732764, 3415955, 4099146, 5465528, 6831910, 8198292, 10247865, 13663820, 16396584, 20495730, 27327640, 40991460, 81982920]

約数ペア:

[(1, 81982920), (2, 40991460), (3, 27327640), (4, 20495730), (5, 16396584), (6, 13663820), (8, 10247865), (10, 8198292), (12, 6831910), (15, 5465528), (20, 4099146), (24, 3415955), (30, 2732764), (40, 2049573), (60, 1366382), (120, 683191), (271, 302520), (542, 151260), (813, 100840), (1084, 75630), (1355, 60504), (1626, 50420), (2168, 37815), (2521, 32520), (2710, 30252), (3252, 25210), (4065, 20168), (5042, 16260), (5420, 15126), (6504, 12605), (7563, 10840), (8130, 10084)]