20185989980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2677187}}^1$

素因数の和:2677238

約数の個数: 48

約数和(自身を含む): 47225596320

約数和(自身を除く): 27039606340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 2677187, 5354374, 10708748, 13385935, 26771870, 34803431, 53543740, 69606862, 77638423, 139213724, 155276846, 174017155, 310553692, 348034310, 388192115, 696068620, 776384230, 1009299499, 1552768460, 2018598998, 4037197996, 5046497495, 10092994990, 20185989980]

約数ペア:

[(1, 20185989980), (2, 10092994990), (4, 5046497495), (5, 4037197996), (10, 2018598998), (13, 1552768460), (20, 1009299499), (26, 776384230), (29, 696068620), (52, 388192115), (58, 348034310), (65, 310553692), (116, 174017155), (130, 155276846), (145, 139213724), (260, 77638423), (290, 69606862), (377, 53543740), (580, 34803431), (754, 26771870), (1508, 13385935), (1885, 10708748), (3770, 5354374), (7540, 2677187)]