20807858672

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{631613}}^1$

素因数の和:631721

約数の個数: 40

約数和(自身を含む): 42292873440

約数和(自身を除く): 21485014768

約数列:

[1, 2, 4, 8, 16, 29, 58, 71, 116, 142, 232, 284, 464, 568, 1136, 2059, 4118, 8236, 16472, 32944, 631613, 1263226, 2526452, 5052904, 10105808, 18316777, 36633554, 44844523, 73267108, 89689046, 146534216, 179378092, 293068432, 358756184, 717512368, 1300491167, 2600982334, 5201964668, 10403929336, 20807858672]

約数ペア:

[(1, 20807858672), (2, 10403929336), (4, 5201964668), (8, 2600982334), (16, 1300491167), (29, 717512368), (58, 358756184), (71, 293068432), (116, 179378092), (142, 146534216), (232, 89689046), (284, 73267108), (464, 44844523), (568, 36633554), (1136, 18316777), (2059, 10105808), (4118, 5052904), (8236, 2526452), (16472, 1263226), (32944, 631613)]