39999740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1609}}^1$

素因数の和:1742

約数の個数: 48

約数和(自身を含む): 92504160

約数和(自身を除く): 52504420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 452, 565, 1130, 1243, 1609, 2260, 2486, 3218, 4972, 6215, 6436, 8045, 12430, 16090, 17699, 24860, 32180, 35398, 70796, 88495, 176990, 181817, 353980, 363634, 727268, 909085, 1818170, 1999987, 3636340, 3999974, 7999948, 9999935, 19999870, 39999740]

約数ペア:

[(1, 39999740), (2, 19999870), (4, 9999935), (5, 7999948), (10, 3999974), (11, 3636340), (20, 1999987), (22, 1818170), (44, 909085), (55, 727268), (110, 363634), (113, 353980), (220, 181817), (226, 176990), (452, 88495), (565, 70796), (1130, 35398), (1243, 32180), (1609, 24860), (2260, 17699), (2486, 16090), (3218, 12430), (4972, 8045), (6215, 6436)]