12420680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 30024000

約数和(自身を除く): 17603320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 59, 76, 95, 118, 152, 190, 236, 277, 295, 380, 472, 554, 590, 760, 1108, 1121, 1180, 1385, 2216, 2242, 2360, 2770, 4484, 5263, 5540, 5605, 8968, 10526, 11080, 11210, 16343, 21052, 22420, 26315, 32686, 42104, 44840, 52630, 65372, 81715, 105260, 130744, 163430, 210520, 310517, 326860, 621034, 653720, 1242068, 1552585, 2484136, 3105170, 6210340, 12420680]

約数ペア:

[(1, 12420680), (2, 6210340), (4, 3105170), (5, 2484136), (8, 1552585), (10, 1242068), (19, 653720), (20, 621034), (38, 326860), (40, 310517), (59, 210520), (76, 163430), (95, 130744), (118, 105260), (152, 81715), (190, 65372), (236, 52630), (277, 44840), (295, 42104), (380, 32686), (472, 26315), (554, 22420), (590, 21052), (760, 16343), (1108, 11210), (1121, 11080), (1180, 10526), (1385, 8968), (2216, 5605), (2242, 5540), (2360, 5263), (2770, 4484)]