1320404080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{532421}}^1$

素因数の和:532465

約数の個数: 40

約数和(自身を含む): 3168975744

約数和(自身を除く): 1848571664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 532421, 1064842, 2129684, 2662105, 4259368, 5324210, 8518736, 10648420, 16505051, 21296840, 33010102, 42593680, 66020204, 82525255, 132040408, 165050510, 264080816, 330101020, 660202040, 1320404080]

約数ペア:

[(1, 1320404080), (2, 660202040), (4, 330101020), (5, 264080816), (8, 165050510), (10, 132040408), (16, 82525255), (20, 66020204), (31, 42593680), (40, 33010102), (62, 21296840), (80, 16505051), (124, 10648420), (155, 8518736), (248, 5324210), (310, 4259368), (496, 2662105), (620, 2129684), (1240, 1064842), (2480, 532421)]