78104620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{3989}}^1$

素因数の和:4098

約数の個数: 48

約数和(自身を含む): 180986400

約数和(自身を除く): 102881780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 3989, 4895, 7978, 9790, 15956, 19580, 19945, 39890, 43879, 79780, 87758, 175516, 219395, 355021, 438790, 710042, 877580, 1420084, 1775105, 3550210, 3905231, 7100420, 7810462, 15620924, 19526155, 39052310, 78104620]

約数ペア:

[(1, 78104620), (2, 39052310), (4, 19526155), (5, 15620924), (10, 7810462), (11, 7100420), (20, 3905231), (22, 3550210), (44, 1775105), (55, 1420084), (89, 877580), (110, 710042), (178, 438790), (220, 355021), (356, 219395), (445, 175516), (890, 87758), (979, 79780), (1780, 43879), (1958, 39890), (3916, 19945), (3989, 19580), (4895, 15956), (7978, 9790)]