79416920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{907}}^1$

素因数の和:1128

約数の個数: 64

約数和(自身を含む): 196128000

約数和(自身を除く): 116711080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 199, 220, 398, 440, 796, 907, 995, 1592, 1814, 1990, 2189, 3628, 3980, 4378, 4535, 7256, 7960, 8756, 9070, 9977, 10945, 17512, 18140, 19954, 21890, 36280, 39908, 43780, 49885, 79816, 87560, 99770, 180493, 199540, 360986, 399080, 721972, 902465, 1443944, 1804930, 1985423, 3609860, 3970846, 7219720, 7941692, 9927115, 15883384, 19854230, 39708460, 79416920]

約数ペア:

[(1, 79416920), (2, 39708460), (4, 19854230), (5, 15883384), (8, 9927115), (10, 7941692), (11, 7219720), (20, 3970846), (22, 3609860), (40, 1985423), (44, 1804930), (55, 1443944), (88, 902465), (110, 721972), (199, 399080), (220, 360986), (398, 199540), (440, 180493), (796, 99770), (907, 87560), (995, 79816), (1592, 49885), (1814, 43780), (1990, 39908), (2189, 36280), (3628, 21890), (3980, 19954), (4378, 18140), (4535, 17512), (7256, 10945), (7960, 9977), (8756, 9070)]