128217420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{712319}}^1$

素因数の和:712334

約数の個数: 36

約数和(自身を含む): 388926720

約数和(自身を除く): 260709300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 712319, 1424638, 2136957, 2849276, 3561595, 4273914, 6410871, 7123190, 8547828, 10684785, 12821742, 14246380, 21369570, 25643484, 32054355, 42739140, 64108710, 128217420]

約数ペア:

[(1, 128217420), (2, 64108710), (3, 42739140), (4, 32054355), (5, 25643484), (6, 21369570), (9, 14246380), (10, 12821742), (12, 10684785), (15, 8547828), (18, 7123190), (20, 6410871), (30, 4273914), (36, 3561595), (45, 2849276), (60, 2136957), (90, 1424638), (180, 712319)]