12704920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 30636000

約数和(自身を除く): 17931080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 73, 76, 95, 146, 152, 190, 229, 292, 365, 380, 458, 584, 730, 760, 916, 1145, 1387, 1460, 1832, 2290, 2774, 2920, 4351, 4580, 5548, 6935, 8702, 9160, 11096, 13870, 16717, 17404, 21755, 27740, 33434, 34808, 43510, 55480, 66868, 83585, 87020, 133736, 167170, 174040, 317623, 334340, 635246, 668680, 1270492, 1588115, 2540984, 3176230, 6352460, 12704920]

約数ペア:

[(1, 12704920), (2, 6352460), (4, 3176230), (5, 2540984), (8, 1588115), (10, 1270492), (19, 668680), (20, 635246), (38, 334340), (40, 317623), (73, 174040), (76, 167170), (95, 133736), (146, 87020), (152, 83585), (190, 66868), (229, 55480), (292, 43510), (365, 34808), (380, 33434), (458, 27740), (584, 21755), (730, 17404), (760, 16717), (916, 13870), (1145, 11096), (1387, 9160), (1460, 8702), (1832, 6935), (2290, 5548), (2774, 4580), (2920, 4351)]