20381450

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 20330230

約数列:

[1, 2, 5, 10, 23, 25, 37, 46, 50, 74, 115, 185, 230, 370, 479, 575, 851, 925, 958, 1150, 1702, 1850, 2395, 4255, 4790, 8510, 11017, 11975, 17723, 21275, 22034, 23950, 35446, 42550, 55085, 88615, 110170, 177230, 275425, 407629, 443075, 550850, 815258, 886150, 2038145, 4076290, 10190725, 20381450]

約数ペア:

[(1, 20381450), (2, 10190725), (5, 4076290), (10, 2038145), (23, 886150), (25, 815258), (37, 550850), (46, 443075), (50, 407629), (74, 275425), (115, 177230), (185, 110170), (230, 88615), (370, 55085), (479, 42550), (575, 35446), (851, 23950), (925, 22034), (958, 21275), (1150, 17723), (1702, 11975), (1850, 11017), (2395, 8510), (4255, 4790)]