20126261260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{275929}}^1$

素因数の和:276466

約数の個数: 48

約数和(自身を含む): 48395914560

約数和(自身を除く): 28269653300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 521, 1042, 2084, 2605, 3647, 5210, 7294, 10420, 14588, 18235, 36470, 72940, 275929, 551858, 1103716, 1379645, 1931503, 2759290, 3863006, 5518580, 7726012, 9657515, 19315030, 38630060, 143759009, 287518018, 575036036, 718795045, 1006313063, 1437590090, 2012626126, 2875180180, 4025252252, 5031565315, 10063130630, 20126261260]

約数ペア:

[(1, 20126261260), (2, 10063130630), (4, 5031565315), (5, 4025252252), (7, 2875180180), (10, 2012626126), (14, 1437590090), (20, 1006313063), (28, 718795045), (35, 575036036), (70, 287518018), (140, 143759009), (521, 38630060), (1042, 19315030), (2084, 9657515), (2605, 7726012), (3647, 5518580), (5210, 3863006), (7294, 2759290), (10420, 1931503), (14588, 1379645), (18235, 1103716), (36470, 551858), (72940, 275929)]