15128500

素因数分解:

$2^2\times 5^3\times {\mathrm{79}}^1\times {\mathrm{383}}^1$

素因数の和:481

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 18417740

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 125, 158, 250, 316, 383, 395, 500, 766, 790, 1532, 1580, 1915, 1975, 3830, 3950, 7660, 7900, 9575, 9875, 19150, 19750, 30257, 38300, 39500, 47875, 60514, 95750, 121028, 151285, 191500, 302570, 605140, 756425, 1512850, 3025700, 3782125, 7564250, 15128500]

約数ペア:

[(1, 15128500), (2, 7564250), (4, 3782125), (5, 3025700), (10, 1512850), (20, 756425), (25, 605140), (50, 302570), (79, 191500), (100, 151285), (125, 121028), (158, 95750), (250, 60514), (316, 47875), (383, 39500), (395, 38300), (500, 30257), (766, 19750), (790, 19150), (1532, 9875), (1580, 9575), (1915, 7900), (1975, 7660), (3830, 3950)]