3942100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:592

約数の個数: 36

約数和(自身を含む): 8680000

約数和(自身を除く): 4737900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 499, 790, 998, 1580, 1975, 1996, 2495, 3950, 4990, 7900, 9980, 12475, 24950, 39421, 49900, 78842, 157684, 197105, 394210, 788420, 985525, 1971050, 3942100]

約数ペア:

[(1, 3942100), (2, 1971050), (4, 985525), (5, 788420), (10, 394210), (20, 197105), (25, 157684), (50, 78842), (79, 49900), (100, 39421), (158, 24950), (316, 12475), (395, 9980), (499, 7900), (790, 4990), (998, 3950), (1580, 2495), (1975, 1996)]