19406620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 42594048

約数和(自身を除く): 23187428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 113, 124, 155, 226, 277, 310, 452, 554, 565, 620, 1108, 1130, 1385, 2260, 2770, 3503, 5540, 7006, 8587, 14012, 17174, 17515, 31301, 34348, 35030, 42935, 62602, 70060, 85870, 125204, 156505, 171740, 313010, 626020, 970331, 1940662, 3881324, 4851655, 9703310, 19406620]

約数ペア:

[(1, 19406620), (2, 9703310), (4, 4851655), (5, 3881324), (10, 1940662), (20, 970331), (31, 626020), (62, 313010), (113, 171740), (124, 156505), (155, 125204), (226, 85870), (277, 70060), (310, 62602), (452, 42935), (554, 35030), (565, 34348), (620, 31301), (1108, 17515), (1130, 17174), (1385, 14012), (2260, 8587), (2770, 7006), (3503, 5540)]