71316920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{21481}}^1$

素因数の和:21575

約数の個数: 32

約数和(自身を含む): 162403920

約数和(自身を除く): 91087000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 21481, 42962, 85924, 107405, 171848, 214810, 429620, 859240, 1782923, 3565846, 7131692, 8914615, 14263384, 17829230, 35658460, 71316920]

約数ペア:

[(1, 71316920), (2, 35658460), (4, 17829230), (5, 14263384), (8, 8914615), (10, 7131692), (20, 3565846), (40, 1782923), (83, 859240), (166, 429620), (332, 214810), (415, 171848), (664, 107405), (830, 85924), (1660, 42962), (3320, 21481)]