12867520

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:605

約数の個数: 56

約数和(自身を含む): 31089600

約数和(自身を除く): 18222080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 509, 632, 790, 1018, 1264, 1580, 2036, 2528, 2545, 3160, 4072, 5056, 5090, 6320, 8144, 10180, 12640, 16288, 20360, 25280, 32576, 40211, 40720, 80422, 81440, 160844, 162880, 201055, 321688, 402110, 643376, 804220, 1286752, 1608440, 2573504, 3216880, 6433760, 12867520]

約数ペア:

[(1, 12867520), (2, 6433760), (4, 3216880), (5, 2573504), (8, 1608440), (10, 1286752), (16, 804220), (20, 643376), (32, 402110), (40, 321688), (64, 201055), (79, 162880), (80, 160844), (158, 81440), (160, 80422), (316, 40720), (320, 40211), (395, 32576), (509, 25280), (632, 20360), (790, 16288), (1018, 12640), (1264, 10180), (1580, 8144), (2036, 6320), (2528, 5090), (2545, 5056), (3160, 4072)]