28316560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 71352576

約数和(自身を除く): 43036016

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 340, 376, 443, 470, 680, 752, 799, 886, 940, 1360, 1598, 1772, 1880, 2215, 3196, 3544, 3760, 3995, 4430, 6392, 7088, 7531, 7990, 8860, 12784, 15062, 15980, 17720, 20821, 30124, 31960, 35440, 37655, 41642, 60248, 63920, 75310, 83284, 104105, 120496, 150620, 166568, 208210, 301240, 333136, 353957, 416420, 602480, 707914, 832840, 1415828, 1665680, 1769785, 2831656, 3539570, 5663312, 7079140, 14158280, 28316560]

約数ペア:

[(1, 28316560), (2, 14158280), (4, 7079140), (5, 5663312), (8, 3539570), (10, 2831656), (16, 1769785), (17, 1665680), (20, 1415828), (34, 832840), (40, 707914), (47, 602480), (68, 416420), (80, 353957), (85, 333136), (94, 301240), (136, 208210), (170, 166568), (188, 150620), (235, 120496), (272, 104105), (340, 83284), (376, 75310), (443, 63920), (470, 60248), (680, 41642), (752, 37655), (799, 35440), (886, 31960), (940, 30124), (1360, 20821), (1598, 17720), (1772, 15980), (1880, 15062), (2215, 12784), (3196, 8860), (3544, 7990), (3760, 7531), (3995, 7088), (4430, 6392)]