40042840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16411}}^1$

素因数の和:16483

約数の個数: 32

約数和(自身を含む): 91578960

約数和(自身を除く): 51536120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 16411, 32822, 65644, 82055, 131288, 164110, 328220, 656440, 1001071, 2002142, 4004284, 5005355, 8008568, 10010710, 20021420, 40042840]

約数ペア:

[(1, 40042840), (2, 20021420), (4, 10010710), (5, 8008568), (8, 5005355), (10, 4004284), (20, 2002142), (40, 1001071), (61, 656440), (122, 328220), (244, 164110), (305, 131288), (488, 82055), (610, 65644), (1220, 32822), (2440, 16411)]