13031840

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1031}}^1$

素因数の和:1125

約数の個数: 48

約数和(自身を含む): 31207680

約数和(自身を除く): 18175840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1031, 1264, 1580, 2062, 2528, 3160, 4124, 5155, 6320, 8248, 10310, 12640, 16496, 20620, 32992, 41240, 81449, 82480, 162898, 164960, 325796, 407245, 651592, 814490, 1303184, 1628980, 2606368, 3257960, 6515920, 13031840]

約数ペア:

[(1, 13031840), (2, 6515920), (4, 3257960), (5, 2606368), (8, 1628980), (10, 1303184), (16, 814490), (20, 651592), (32, 407245), (40, 325796), (79, 164960), (80, 162898), (158, 82480), (160, 81449), (316, 41240), (395, 32992), (632, 20620), (790, 16496), (1031, 12640), (1264, 10310), (1580, 8248), (2062, 6320), (2528, 5155), (3160, 4124)]