661179840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{688729}}^1$

素因数の和:688749

約数の個数: 56

約数和(自身を含む): 2099249040

約数和(自身を除く): 1438069200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 688729, 1377458, 2066187, 2754916, 3443645, 4132374, 5509832, 6887290, 8264748, 10330935, 11019664, 13774580, 16529496, 20661870, 22039328, 27549160, 33058992, 41323740, 44078656, 55098320, 66117984, 82647480, 110196640, 132235968, 165294960, 220393280, 330589920, 661179840]

約数ペア:

[(1, 661179840), (2, 330589920), (3, 220393280), (4, 165294960), (5, 132235968), (6, 110196640), (8, 82647480), (10, 66117984), (12, 55098320), (15, 44078656), (16, 41323740), (20, 33058992), (24, 27549160), (30, 22039328), (32, 20661870), (40, 16529496), (48, 13774580), (60, 11019664), (64, 10330935), (80, 8264748), (96, 6887290), (120, 5509832), (160, 4132374), (192, 3443645), (240, 2754916), (320, 2066187), (480, 1377458), (960, 688729)]