13379740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 31185504

約数和(自身を除く): 17805764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 997, 1220, 1342, 1994, 2684, 3355, 3988, 4985, 6710, 9970, 10967, 13420, 19940, 21934, 43868, 54835, 60817, 109670, 121634, 219340, 243268, 304085, 608170, 668987, 1216340, 1337974, 2675948, 3344935, 6689870, 13379740]

約数ペア:

[(1, 13379740), (2, 6689870), (4, 3344935), (5, 2675948), (10, 1337974), (11, 1216340), (20, 668987), (22, 608170), (44, 304085), (55, 243268), (61, 219340), (110, 121634), (122, 109670), (220, 60817), (244, 54835), (305, 43868), (610, 21934), (671, 19940), (997, 13420), (1220, 10967), (1342, 9970), (1994, 6710), (2684, 4985), (3355, 3988)]