20164594900

素因数分解:

$2^2\times 5^2\times {\mathrm{421}}^1\times {\mathrm{509}}^1\times {\mathrm{941}}^1$

素因数の和:1885

約数の個数: 72

約数和(自身を含む): 43993981080

約数和(自身を除く): 23829386180

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 421, 509, 842, 941, 1018, 1684, 1882, 2036, 2105, 2545, 3764, 4210, 4705, 5090, 8420, 9410, 10180, 10525, 12725, 18820, 21050, 23525, 25450, 42100, 47050, 50900, 94100, 214289, 396161, 428578, 478969, 792322, 857156, 957938, 1071445, 1584644, 1915876, 1980805, 2142890, 2394845, 3961610, 4285780, 4789690, 5357225, 7923220, 9579380, 9904025, 10714450, 11974225, 19808050, 21428900, 23948450, 39616100, 47896900, 201645949, 403291898, 806583796, 1008229745, 2016459490, 4032918980, 5041148725, 10082297450, 20164594900]

約数ペア:

[(1, 20164594900), (2, 10082297450), (4, 5041148725), (5, 4032918980), (10, 2016459490), (20, 1008229745), (25, 806583796), (50, 403291898), (100, 201645949), (421, 47896900), (509, 39616100), (842, 23948450), (941, 21428900), (1018, 19808050), (1684, 11974225), (1882, 10714450), (2036, 9904025), (2105, 9579380), (2545, 7923220), (3764, 5357225), (4210, 4789690), (4705, 4285780), (5090, 3961610), (8420, 2394845), (9410, 2142890), (10180, 1980805), (10525, 1915876), (12725, 1584644), (18820, 1071445), (21050, 957938), (23525, 857156), (25450, 792322), (42100, 478969), (47050, 428578), (50900, 396161), (94100, 214289)]