87842840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70841}}^1$

素因数の和:70883

約数の個数: 32

約数和(自身を含む): 204024960

約数和(自身を除く): 116182120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 70841, 141682, 283364, 354205, 566728, 708410, 1416820, 2196071, 2833640, 4392142, 8784284, 10980355, 17568568, 21960710, 43921420, 87842840]

約数ペア:

[(1, 87842840), (2, 43921420), (4, 21960710), (5, 17568568), (8, 10980355), (10, 8784284), (20, 4392142), (31, 2833640), (40, 2196071), (62, 1416820), (124, 708410), (155, 566728), (248, 354205), (310, 283364), (620, 141682), (1240, 70841)]