20217668848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{601}}^1\times {\mathrm{161731}}^1$

素因数の和:162353

約数の個数: 40

約数和(自身を含む): 42255396176

約数和(自身を除く): 22037727328

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 601, 1202, 2404, 4808, 7813, 9616, 15626, 31252, 62504, 125008, 161731, 323462, 646924, 1293848, 2102503, 2587696, 4205006, 8410012, 16820024, 33640048, 97200331, 194400662, 388801324, 777602648, 1263604303, 1555205296, 2527208606, 5054417212, 10108834424, 20217668848]

約数ペア:

[(1, 20217668848), (2, 10108834424), (4, 5054417212), (8, 2527208606), (13, 1555205296), (16, 1263604303), (26, 777602648), (52, 388801324), (104, 194400662), (208, 97200331), (601, 33640048), (1202, 16820024), (2404, 8410012), (4808, 4205006), (7813, 2587696), (9616, 2102503), (15626, 1293848), (31252, 646924), (62504, 323462), (125008, 161731)]