72644920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{21881}}^1$

素因数の和:21975

約数の個数: 32

約数和(自身を含む): 165427920

約数和(自身を除く): 92783000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 21881, 43762, 87524, 109405, 175048, 218810, 437620, 875240, 1816123, 3632246, 7264492, 9080615, 14528984, 18161230, 36322460, 72644920]

約数ペア:

[(1, 72644920), (2, 36322460), (4, 18161230), (5, 14528984), (8, 9080615), (10, 7264492), (20, 3632246), (40, 1816123), (83, 875240), (166, 437620), (332, 218810), (415, 175048), (664, 109405), (830, 87524), (1660, 43762), (3320, 21881)]