7990420

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^2\times {\mathrm{89}}^1$

素因数の和:232

約数の個数: 36

約数和(自身を含む): 17225460

約数和(自身を除く): 9235040

約数列:

[1, 2, 4, 5, 10, 20, 67, 89, 134, 178, 268, 335, 356, 445, 670, 890, 1340, 1780, 4489, 5963, 8978, 11926, 17956, 22445, 23852, 29815, 44890, 59630, 89780, 119260, 399521, 799042, 1598084, 1997605, 3995210, 7990420]

約数ペア:

[(1, 7990420), (2, 3995210), (4, 1997605), (5, 1598084), (10, 799042), (20, 399521), (67, 119260), (89, 89780), (134, 59630), (178, 44890), (268, 29815), (335, 23852), (356, 22445), (445, 17956), (670, 11926), (890, 8978), (1340, 5963), (1780, 4489)]