641997120

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{668747}}^1$

素因数の和:668767

約数の個数: 56

約数和(自身を含む): 2038343904

約数和(自身を除く): 1396346784

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 668747, 1337494, 2006241, 2674988, 3343735, 4012482, 5349976, 6687470, 8024964, 10031205, 10699952, 13374940, 16049928, 20062410, 21399904, 26749880, 32099856, 40124820, 42799808, 53499760, 64199712, 80249640, 106999520, 128399424, 160499280, 213999040, 320998560, 641997120]

約数ペア:

[(1, 641997120), (2, 320998560), (3, 213999040), (4, 160499280), (5, 128399424), (6, 106999520), (8, 80249640), (10, 64199712), (12, 53499760), (15, 42799808), (16, 40124820), (20, 32099856), (24, 26749880), (30, 21399904), (32, 20062410), (40, 16049928), (48, 13374940), (60, 10699952), (64, 10031205), (80, 8024964), (96, 6687470), (120, 5349976), (160, 4012482), (192, 3343735), (240, 2674988), (320, 2006241), (480, 1337494), (960, 668747)]