54375640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{123581}}^1$

素因数の和:123603

約数の個数: 32

約数和(自身を含む): 133468560

約数和(自身を除く): 79092920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 123581, 247162, 494324, 617905, 988648, 1235810, 1359391, 2471620, 2718782, 4943240, 5437564, 6796955, 10875128, 13593910, 27187820, 54375640]

約数ペア:

[(1, 54375640), (2, 27187820), (4, 13593910), (5, 10875128), (8, 6796955), (10, 5437564), (11, 4943240), (20, 2718782), (22, 2471620), (40, 1359391), (44, 1235810), (55, 988648), (88, 617905), (110, 494324), (220, 247162), (440, 123581)]