15985900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:619

約数の個数: 72

約数和(自身を含む): 40684896

約数和(自身を除く): 24698996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 140, 164, 175, 205, 287, 350, 410, 557, 574, 700, 820, 1025, 1114, 1148, 1435, 2050, 2228, 2785, 2870, 3899, 4100, 5570, 5740, 7175, 7798, 11140, 13925, 14350, 15596, 19495, 22837, 27850, 28700, 38990, 45674, 55700, 77980, 91348, 97475, 114185, 159859, 194950, 228370, 319718, 389900, 456740, 570925, 639436, 799295, 1141850, 1598590, 2283700, 3197180, 3996475, 7992950, 15985900]

約数ペア:

[(1, 15985900), (2, 7992950), (4, 3996475), (5, 3197180), (7, 2283700), (10, 1598590), (14, 1141850), (20, 799295), (25, 639436), (28, 570925), (35, 456740), (41, 389900), (50, 319718), (70, 228370), (82, 194950), (100, 159859), (140, 114185), (164, 97475), (175, 91348), (205, 77980), (287, 55700), (350, 45674), (410, 38990), (557, 28700), (574, 27850), (700, 22837), (820, 19495), (1025, 15596), (1114, 14350), (1148, 13925), (1435, 11140), (2050, 7798), (2228, 7175), (2785, 5740), (2870, 5570), (3899, 4100)]