20091740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1429}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 45645600

約数和(自身を除く): 25553860

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 1429, 2812, 2858, 3515, 5716, 7030, 7145, 14060, 14290, 27151, 28580, 52873, 54302, 105746, 108604, 135755, 211492, 264365, 271510, 528730, 543020, 1004587, 1057460, 2009174, 4018348, 5022935, 10045870, 20091740]

約数ペア:

[(1, 20091740), (2, 10045870), (4, 5022935), (5, 4018348), (10, 2009174), (19, 1057460), (20, 1004587), (37, 543020), (38, 528730), (74, 271510), (76, 264365), (95, 211492), (148, 135755), (185, 108604), (190, 105746), (370, 54302), (380, 52873), (703, 28580), (740, 27151), (1406, 14290), (1429, 14060), (2812, 7145), (2858, 7030), (3515, 5716)]