18698620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 41146560

約数和(自身を除く): 22447940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 103, 116, 145, 206, 290, 313, 412, 515, 580, 626, 1030, 1252, 1565, 2060, 2987, 3130, 5974, 6260, 9077, 11948, 14935, 18154, 29870, 32239, 36308, 45385, 59740, 64478, 90770, 128956, 161195, 181540, 322390, 644780, 934931, 1869862, 3739724, 4674655, 9349310, 18698620]

約数ペア:

[(1, 18698620), (2, 9349310), (4, 4674655), (5, 3739724), (10, 1869862), (20, 934931), (29, 644780), (58, 322390), (103, 181540), (116, 161195), (145, 128956), (206, 90770), (290, 64478), (313, 59740), (412, 45385), (515, 36308), (580, 32239), (626, 29870), (1030, 18154), (1252, 14935), (1565, 11948), (2060, 9077), (2987, 6260), (3130, 5974)]