20809615960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10617151}}^1$

素因数の和:10617176

約数の個数: 48

約数和(自身を含む): 54465989760

約数和(自身を除く): 33656373800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10617151, 21234302, 42468604, 53085755, 74320057, 84937208, 106171510, 148640114, 212343020, 297280228, 371600285, 424686040, 520240399, 594560456, 743200570, 1040480798, 1486401140, 2080961596, 2601201995, 2972802280, 4161923192, 5202403990, 10404807980, 20809615960]

約数ペア:

[(1, 20809615960), (2, 10404807980), (4, 5202403990), (5, 4161923192), (7, 2972802280), (8, 2601201995), (10, 2080961596), (14, 1486401140), (20, 1040480798), (28, 743200570), (35, 594560456), (40, 520240399), (49, 424686040), (56, 371600285), (70, 297280228), (98, 212343020), (140, 148640114), (196, 106171510), (245, 84937208), (280, 74320057), (392, 53085755), (490, 42468604), (980, 21234302), (1960, 10617151)]