68609080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{353}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 159809760

約数和(自身を除く): 91200680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 113, 172, 215, 226, 344, 353, 430, 452, 565, 706, 860, 904, 1130, 1412, 1720, 1765, 2260, 2824, 3530, 4520, 4859, 7060, 9718, 14120, 15179, 19436, 24295, 30358, 38872, 39889, 48590, 60716, 75895, 79778, 97180, 121432, 151790, 159556, 194360, 199445, 303580, 319112, 398890, 607160, 797780, 1595560, 1715227, 3430454, 6860908, 8576135, 13721816, 17152270, 34304540, 68609080]

約数ペア:

[(1, 68609080), (2, 34304540), (4, 17152270), (5, 13721816), (8, 8576135), (10, 6860908), (20, 3430454), (40, 1715227), (43, 1595560), (86, 797780), (113, 607160), (172, 398890), (215, 319112), (226, 303580), (344, 199445), (353, 194360), (430, 159556), (452, 151790), (565, 121432), (706, 97180), (860, 79778), (904, 75895), (1130, 60716), (1412, 48590), (1720, 39889), (1765, 38872), (2260, 30358), (2824, 24295), (3530, 19436), (4520, 15179), (4859, 14120), (7060, 9718)]