3946840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1249}}^1$

素因数の和:1339

約数の個数: 32

約数和(自身を含む): 9000000

約数和(自身を除く): 5053160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1249, 1580, 2498, 3160, 4996, 6245, 9992, 12490, 24980, 49960, 98671, 197342, 394684, 493355, 789368, 986710, 1973420, 3946840]

約数ペア:

[(1, 3946840), (2, 1973420), (4, 986710), (5, 789368), (8, 493355), (10, 394684), (20, 197342), (40, 98671), (79, 49960), (158, 24980), (316, 12490), (395, 9992), (632, 6245), (790, 4996), (1249, 3160), (1580, 2498)]