15559840

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1231}}^1$

素因数の和:1325

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 21695840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1231, 1264, 1580, 2462, 2528, 3160, 4924, 6155, 6320, 9848, 12310, 12640, 19696, 24620, 39392, 49240, 97249, 98480, 194498, 196960, 388996, 486245, 777992, 972490, 1555984, 1944980, 3111968, 3889960, 7779920, 15559840]

約数ペア:

[(1, 15559840), (2, 7779920), (4, 3889960), (5, 3111968), (8, 1944980), (10, 1555984), (16, 972490), (20, 777992), (32, 486245), (40, 388996), (79, 196960), (80, 194498), (158, 98480), (160, 97249), (316, 49240), (395, 39392), (632, 24620), (790, 19696), (1231, 12640), (1264, 12310), (1580, 9848), (2462, 6320), (2528, 6155), (3160, 4924)]