561640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 1332000

約数和(自身を除く): 770360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 739, 760, 1478, 2956, 3695, 5912, 7390, 14041, 14780, 28082, 29560, 56164, 70205, 112328, 140410, 280820, 561640]

約数ペア:

[(1, 561640), (2, 280820), (4, 140410), (5, 112328), (8, 70205), (10, 56164), (19, 29560), (20, 28082), (38, 14780), (40, 14041), (76, 7390), (95, 5912), (152, 3695), (190, 2956), (380, 1478), (739, 760)]