18793240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5279}}^1$

素因数の和:5379

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 23974760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5279, 10558, 21116, 26395, 42232, 52790, 105580, 211160, 469831, 939662, 1879324, 2349155, 3758648, 4698310, 9396620, 18793240]

約数ペア:

[(1, 18793240), (2, 9396620), (4, 4698310), (5, 3758648), (8, 2349155), (10, 1879324), (20, 939662), (40, 469831), (89, 211160), (178, 105580), (356, 52790), (445, 42232), (712, 26395), (890, 21116), (1780, 10558), (3560, 5279)]