15908120

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{797}}^1$

素因数の和:1307

約数の個数: 32

約数和(自身を含む): 35910000

約数和(自身を除く): 20001880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 797, 998, 1594, 1996, 2495, 3188, 3985, 3992, 4990, 6376, 7970, 9980, 15940, 19960, 31880, 397703, 795406, 1590812, 1988515, 3181624, 3977030, 7954060, 15908120]

約数ペア:

[(1, 15908120), (2, 7954060), (4, 3977030), (5, 3181624), (8, 1988515), (10, 1590812), (20, 795406), (40, 397703), (499, 31880), (797, 19960), (998, 15940), (1594, 9980), (1996, 7970), (2495, 6376), (3188, 4990), (3985, 3992)]