77806920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{648391}}^1$

素因数の和:648405

約数の個数: 32

約数和(自身を含む): 233421120

約数和(自身を除く): 155614200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 648391, 1296782, 1945173, 2593564, 3241955, 3890346, 5187128, 6483910, 7780692, 9725865, 12967820, 15561384, 19451730, 25935640, 38903460, 77806920]

約数ペア:

[(1, 77806920), (2, 38903460), (3, 25935640), (4, 19451730), (5, 15561384), (6, 12967820), (8, 9725865), (10, 7780692), (12, 6483910), (15, 5187128), (20, 3890346), (24, 3241955), (30, 2593564), (40, 1945173), (60, 1296782), (120, 648391)]