217210920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{8117}}^1$

素因数の和:8354

約数の個数: 64

約数和(自身を含む): 654635520

約数和(自身を除く): 437424600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 223, 446, 669, 892, 1115, 1338, 1784, 2230, 2676, 3345, 4460, 5352, 6690, 8117, 8920, 13380, 16234, 24351, 26760, 32468, 40585, 48702, 64936, 81170, 97404, 121755, 162340, 194808, 243510, 324680, 487020, 974040, 1810091, 3620182, 5430273, 7240364, 9050455, 10860546, 14480728, 18100910, 21721092, 27151365, 36201820, 43442184, 54302730, 72403640, 108605460, 217210920]

約数ペア:

[(1, 217210920), (2, 108605460), (3, 72403640), (4, 54302730), (5, 43442184), (6, 36201820), (8, 27151365), (10, 21721092), (12, 18100910), (15, 14480728), (20, 10860546), (24, 9050455), (30, 7240364), (40, 5430273), (60, 3620182), (120, 1810091), (223, 974040), (446, 487020), (669, 324680), (892, 243510), (1115, 194808), (1338, 162340), (1784, 121755), (2230, 97404), (2676, 81170), (3345, 64936), (4460, 48702), (5352, 40585), (6690, 32468), (8117, 26760), (8920, 24351), (13380, 16234)]