639975842

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{8609}}^1$

素因数の和:8762

約数の個数: 32

約数和(自身を含む): 1091059200

約数和(自身を除く): 451083358

約数列:

[1, 2, 11, 22, 31, 62, 109, 218, 341, 682, 1199, 2398, 3379, 6758, 8609, 17218, 37169, 74338, 94699, 189398, 266879, 533758, 938381, 1876762, 2935669, 5871338, 10322191, 20644382, 29089811, 58179622, 319987921, 639975842]

約数ペア:

[(1, 639975842), (2, 319987921), (11, 58179622), (22, 29089811), (31, 20644382), (62, 10322191), (109, 5871338), (218, 2935669), (341, 1876762), (682, 938381), (1199, 533758), (2398, 266879), (3379, 189398), (6758, 94699), (8609, 74338), (17218, 37169)]