8179880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 19872000

約数和(自身を除く): 11692120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 229, 235, 376, 380, 458, 470, 760, 893, 916, 940, 1145, 1786, 1832, 1880, 2290, 3572, 4351, 4465, 4580, 7144, 8702, 8930, 9160, 10763, 17404, 17860, 21526, 21755, 34808, 35720, 43052, 43510, 53815, 86104, 87020, 107630, 174040, 204497, 215260, 408994, 430520, 817988, 1022485, 1635976, 2044970, 4089940, 8179880]

約数ペア:

[(1, 8179880), (2, 4089940), (4, 2044970), (5, 1635976), (8, 1022485), (10, 817988), (19, 430520), (20, 408994), (38, 215260), (40, 204497), (47, 174040), (76, 107630), (94, 87020), (95, 86104), (152, 53815), (188, 43510), (190, 43052), (229, 35720), (235, 34808), (376, 21755), (380, 21526), (458, 17860), (470, 17404), (760, 10763), (893, 9160), (916, 8930), (940, 8702), (1145, 7144), (1786, 4580), (1832, 4465), (1880, 4351), (2290, 3572)]