85412840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52081}}^1$

素因数の和:52133

約数の個数: 32

約数和(自身を含む): 196869960

約数和(自身を除く): 111457120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 52081, 104162, 208324, 260405, 416648, 520810, 1041620, 2083240, 2135321, 4270642, 8541284, 10676605, 17082568, 21353210, 42706420, 85412840]

約数ペア:

[(1, 85412840), (2, 42706420), (4, 21353210), (5, 17082568), (8, 10676605), (10, 8541284), (20, 4270642), (40, 2135321), (41, 2083240), (82, 1041620), (164, 520810), (205, 416648), (328, 260405), (410, 208324), (820, 104162), (1640, 52081)]