1640797740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{52691}}^1$

素因数の和:52879

約数の個数: 72

約数和(自身を含む): 5005950768

約数和(自身を除く): 3365153028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 173, 180, 346, 519, 692, 865, 1038, 1557, 1730, 2076, 2595, 3114, 3460, 5190, 6228, 7785, 10380, 15570, 31140, 52691, 105382, 158073, 210764, 263455, 316146, 474219, 526910, 632292, 790365, 948438, 1053820, 1580730, 1896876, 2371095, 3161460, 4742190, 9115543, 9484380, 18231086, 27346629, 36462172, 45577715, 54693258, 82039887, 91155430, 109386516, 136733145, 164079774, 182310860, 273466290, 328159548, 410199435, 546932580, 820398870, 1640797740]

約数ペア:

[(1, 1640797740), (2, 820398870), (3, 546932580), (4, 410199435), (5, 328159548), (6, 273466290), (9, 182310860), (10, 164079774), (12, 136733145), (15, 109386516), (18, 91155430), (20, 82039887), (30, 54693258), (36, 45577715), (45, 36462172), (60, 27346629), (90, 18231086), (173, 9484380), (180, 9115543), (346, 4742190), (519, 3161460), (692, 2371095), (865, 1896876), (1038, 1580730), (1557, 1053820), (1730, 948438), (2076, 790365), (2595, 632292), (3114, 526910), (3460, 474219), (5190, 316146), (6228, 263455), (7785, 210764), (10380, 158073), (15570, 105382), (31140, 52691)]