61089440

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1999}}^1$

素因数の和:2205

約数の個数: 48

約数和(自身を含む): 145152000

約数和(自身を除く): 84062560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 382, 764, 955, 1528, 1910, 1999, 3056, 3820, 3998, 6112, 7640, 7996, 9995, 15280, 15992, 19990, 30560, 31984, 39980, 63968, 79960, 159920, 319840, 381809, 763618, 1527236, 1909045, 3054472, 3818090, 6108944, 7636180, 12217888, 15272360, 30544720, 61089440]

約数ペア:

[(1, 61089440), (2, 30544720), (4, 15272360), (5, 12217888), (8, 7636180), (10, 6108944), (16, 3818090), (20, 3054472), (32, 1909045), (40, 1527236), (80, 763618), (160, 381809), (191, 319840), (382, 159920), (764, 79960), (955, 63968), (1528, 39980), (1910, 31984), (1999, 30560), (3056, 19990), (3820, 15992), (3998, 15280), (6112, 9995), (7640, 7996)]