19882680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{743}}^1$

素因数の和:980

約数の個数: 64

約数和(自身を含む): 59996160

約数和(自身を除く): 40113480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 223, 446, 669, 743, 892, 1115, 1338, 1486, 1784, 2229, 2230, 2676, 2972, 3345, 3715, 4458, 4460, 5352, 5944, 6690, 7430, 8916, 8920, 11145, 13380, 14860, 17832, 22290, 26760, 29720, 44580, 89160, 165689, 331378, 497067, 662756, 828445, 994134, 1325512, 1656890, 1988268, 2485335, 3313780, 3976536, 4970670, 6627560, 9941340, 19882680]

約数ペア:

[(1, 19882680), (2, 9941340), (3, 6627560), (4, 4970670), (5, 3976536), (6, 3313780), (8, 2485335), (10, 1988268), (12, 1656890), (15, 1325512), (20, 994134), (24, 828445), (30, 662756), (40, 497067), (60, 331378), (120, 165689), (223, 89160), (446, 44580), (669, 29720), (743, 26760), (892, 22290), (1115, 17832), (1338, 14860), (1486, 13380), (1784, 11145), (2229, 8920), (2230, 8916), (2676, 7430), (2972, 6690), (3345, 5944), (3715, 5352), (4458, 4460)]