20814787740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{997}}^1\times {\mathrm{347957}}^1$

素因数の和:348966

約数の個数: 48

約数和(自身を含む): 58340030112

約数和(自身を除く): 37525242372

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 997, 1994, 2991, 3988, 4985, 5982, 9970, 11964, 14955, 19940, 29910, 59820, 347957, 695914, 1043871, 1391828, 1739785, 2087742, 3479570, 4175484, 5219355, 6959140, 10438710, 20877420, 346913129, 693826258, 1040739387, 1387652516, 1734565645, 2081478774, 3469131290, 4162957548, 5203696935, 6938262580, 10407393870, 20814787740]

約数ペア:

[(1, 20814787740), (2, 10407393870), (3, 6938262580), (4, 5203696935), (5, 4162957548), (6, 3469131290), (10, 2081478774), (12, 1734565645), (15, 1387652516), (20, 1040739387), (30, 693826258), (60, 346913129), (997, 20877420), (1994, 10438710), (2991, 6959140), (3988, 5219355), (4985, 4175484), (5982, 3479570), (9970, 2087742), (11964, 1739785), (14955, 1391828), (19940, 1043871), (29910, 695914), (59820, 347957)]