8216440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 20100960

約数和(自身を除く): 11884520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 281, 340, 344, 430, 562, 680, 731, 860, 1124, 1405, 1462, 1720, 2248, 2810, 2924, 3655, 4777, 5620, 5848, 7310, 9554, 11240, 12083, 14620, 19108, 23885, 24166, 29240, 38216, 47770, 48332, 60415, 95540, 96664, 120830, 191080, 205411, 241660, 410822, 483320, 821644, 1027055, 1643288, 2054110, 4108220, 8216440]

約数ペア:

[(1, 8216440), (2, 4108220), (4, 2054110), (5, 1643288), (8, 1027055), (10, 821644), (17, 483320), (20, 410822), (34, 241660), (40, 205411), (43, 191080), (68, 120830), (85, 96664), (86, 95540), (136, 60415), (170, 48332), (172, 47770), (215, 38216), (281, 29240), (340, 24166), (344, 23885), (430, 19108), (562, 14620), (680, 12083), (731, 11240), (860, 9554), (1124, 7310), (1405, 5848), (1462, 5620), (1720, 4777), (2248, 3655), (2810, 2924)]