20130978620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{101}}^1\times {\mathrm{18839}}^1$

素因数の和:18995

約数の個数: 72

約数和(自身を含む): 44632939680

約数和(自身を除く): 24501961060

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 101, 115, 202, 230, 404, 460, 505, 529, 1010, 1058, 2020, 2116, 2323, 2645, 4646, 5290, 9292, 10580, 11615, 18839, 23230, 37678, 46460, 53429, 75356, 94195, 106858, 188390, 213716, 267145, 376780, 433297, 534290, 866594, 1068580, 1733188, 1902739, 2166485, 3805478, 4332970, 7610956, 8665940, 9513695, 9965831, 19027390, 19931662, 38054780, 39863324, 43762997, 49829155, 87525994, 99658310, 175051988, 199316620, 218814985, 437629970, 875259940, 1006548931, 2013097862, 4026195724, 5032744655, 10065489310, 20130978620]

約数ペア:

[(1, 20130978620), (2, 10065489310), (4, 5032744655), (5, 4026195724), (10, 2013097862), (20, 1006548931), (23, 875259940), (46, 437629970), (92, 218814985), (101, 199316620), (115, 175051988), (202, 99658310), (230, 87525994), (404, 49829155), (460, 43762997), (505, 39863324), (529, 38054780), (1010, 19931662), (1058, 19027390), (2020, 9965831), (2116, 9513695), (2323, 8665940), (2645, 7610956), (4646, 4332970), (5290, 3805478), (9292, 2166485), (10580, 1902739), (11615, 1733188), (18839, 1068580), (23230, 866594), (37678, 534290), (46460, 433297), (53429, 376780), (75356, 267145), (94195, 213716), (106858, 188390)]