1990807630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1\times {\mathrm{653}}^1$

素因数の和:1213

約数の個数: 64

約数和(自身を含む): 4153161600

約数和(自身を除く): 2162353970

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 97, 194, 449, 485, 653, 679, 898, 970, 1306, 1358, 2245, 3143, 3265, 3395, 4490, 4571, 6286, 6530, 6790, 9142, 15715, 22855, 31430, 43553, 45710, 63341, 87106, 126682, 217765, 293197, 304871, 316705, 435530, 443387, 586394, 609742, 633410, 886774, 1465985, 1524355, 2052379, 2216935, 2931970, 3048710, 4104758, 4433870, 10261895, 20523790, 28440109, 56880218, 142200545, 199080763, 284401090, 398161526, 995403815, 1990807630]

約数ペア:

[(1, 1990807630), (2, 995403815), (5, 398161526), (7, 284401090), (10, 199080763), (14, 142200545), (35, 56880218), (70, 28440109), (97, 20523790), (194, 10261895), (449, 4433870), (485, 4104758), (653, 3048710), (679, 2931970), (898, 2216935), (970, 2052379), (1306, 1524355), (1358, 1465985), (2245, 886774), (3143, 633410), (3265, 609742), (3395, 586394), (4490, 443387), (4571, 435530), (6286, 316705), (6530, 304871), (6790, 293197), (9142, 217765), (15715, 126682), (22855, 87106), (31430, 63341), (43553, 45710)]