639651312

素因数分解:

$2^4\times 3^2\times {\mathrm{139}}^1\times {\mathrm{31957}}^1$

素因数の和:32110

約数の個数: 60

約数和(自身を含む): 1803070360

約数和(自身を除く): 1163419048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 139, 144, 278, 417, 556, 834, 1112, 1251, 1668, 2224, 2502, 3336, 5004, 6672, 10008, 20016, 31957, 63914, 95871, 127828, 191742, 255656, 287613, 383484, 511312, 575226, 766968, 1150452, 1533936, 2300904, 4442023, 4601808, 8884046, 13326069, 17768092, 26652138, 35536184, 39978207, 53304276, 71072368, 79956414, 106608552, 159912828, 213217104, 319825656, 639651312]

約数ペア:

[(1, 639651312), (2, 319825656), (3, 213217104), (4, 159912828), (6, 106608552), (8, 79956414), (9, 71072368), (12, 53304276), (16, 39978207), (18, 35536184), (24, 26652138), (36, 17768092), (48, 13326069), (72, 8884046), (139, 4601808), (144, 4442023), (278, 2300904), (417, 1533936), (556, 1150452), (834, 766968), (1112, 575226), (1251, 511312), (1668, 383484), (2224, 287613), (2502, 255656), (3336, 191742), (5004, 127828), (6672, 95871), (10008, 63914), (20016, 31957)]