990289980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{4007}}^1$

素因数の和:5395

約数の個数: 72

約数和(自身を含む): 3006817632

約数和(自身を除く): 2016527652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1373, 2746, 4007, 4119, 5492, 6865, 8014, 8238, 12021, 12357, 13730, 16028, 16476, 20035, 20595, 24042, 24714, 27460, 36063, 40070, 41190, 48084, 49428, 60105, 61785, 72126, 80140, 82380, 120210, 123570, 144252, 180315, 240420, 247140, 360630, 721260, 5501611, 11003222, 16504833, 22006444, 27508055, 33009666, 49514499, 55016110, 66019332, 82524165, 99028998, 110032220, 165048330, 198057996, 247572495, 330096660, 495144990, 990289980]

約数ペア:

[(1, 990289980), (2, 495144990), (3, 330096660), (4, 247572495), (5, 198057996), (6, 165048330), (9, 110032220), (10, 99028998), (12, 82524165), (15, 66019332), (18, 55016110), (20, 49514499), (30, 33009666), (36, 27508055), (45, 22006444), (60, 16504833), (90, 11003222), (180, 5501611), (1373, 721260), (2746, 360630), (4007, 247140), (4119, 240420), (5492, 180315), (6865, 144252), (8014, 123570), (8238, 120210), (12021, 82380), (12357, 80140), (13730, 72126), (16028, 61785), (16476, 60105), (20035, 49428), (20595, 48084), (24042, 41190), (24714, 40070), (27460, 36063)]