20667039080

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{574723}}^1$

素因数の和:574794

約数の個数: 64

約数和(自身を含む): 49656153600

約数和(自身を除く): 28989114520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 3596, 4495, 7192, 8990, 17980, 35960, 574723, 1149446, 2298892, 2873615, 4597784, 5747230, 11494460, 16666967, 17816413, 22988920, 33333934, 35632826, 66667868, 71265652, 83334835, 89082065, 133335736, 142531304, 166669670, 178164130, 333339340, 356328260, 516675977, 666678680, 712656520, 1033351954, 2066703908, 2583379885, 4133407816, 5166759770, 10333519540, 20667039080]

約数ペア:

[(1, 20667039080), (2, 10333519540), (4, 5166759770), (5, 4133407816), (8, 2583379885), (10, 2066703908), (20, 1033351954), (29, 712656520), (31, 666678680), (40, 516675977), (58, 356328260), (62, 333339340), (116, 178164130), (124, 166669670), (145, 142531304), (155, 133335736), (232, 89082065), (248, 83334835), (290, 71265652), (310, 66667868), (580, 35632826), (620, 33333934), (899, 22988920), (1160, 17816413), (1240, 16666967), (1798, 11494460), (3596, 5747230), (4495, 4597784), (7192, 2873615), (8990, 2298892), (17980, 1149446), (35960, 574723)]