68796440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 161568000

約数和(自身を除く): 92771560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 218, 248, 310, 436, 509, 545, 620, 872, 1018, 1090, 1240, 2036, 2180, 2545, 3379, 4072, 4360, 5090, 6758, 10180, 13516, 15779, 16895, 20360, 27032, 31558, 33790, 55481, 63116, 67580, 78895, 110962, 126232, 135160, 157790, 221924, 277405, 315580, 443848, 554810, 631160, 1109620, 1719911, 2219240, 3439822, 6879644, 8599555, 13759288, 17199110, 34398220, 68796440]

約数ペア:

[(1, 68796440), (2, 34398220), (4, 17199110), (5, 13759288), (8, 8599555), (10, 6879644), (20, 3439822), (31, 2219240), (40, 1719911), (62, 1109620), (109, 631160), (124, 554810), (155, 443848), (218, 315580), (248, 277405), (310, 221924), (436, 157790), (509, 135160), (545, 126232), (620, 110962), (872, 78895), (1018, 67580), (1090, 63116), (1240, 55481), (2036, 33790), (2180, 31558), (2545, 27032), (3379, 20360), (4072, 16895), (4360, 15779), (5090, 13516), (6758, 10180)]