28028920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{877}}^1$

素因数の和:952

約数の個数: 64

約数和(自身を含む): 68273280

約数和(自身を除く): 40244360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 877, 940, 1598, 1754, 1880, 3196, 3508, 3995, 4385, 6392, 7016, 7990, 8770, 14909, 15980, 17540, 29818, 31960, 35080, 41219, 59636, 74545, 82438, 119272, 149090, 164876, 206095, 298180, 329752, 412190, 596360, 700723, 824380, 1401446, 1648760, 2802892, 3503615, 5605784, 7007230, 14014460, 28028920]

約数ペア:

[(1, 28028920), (2, 14014460), (4, 7007230), (5, 5605784), (8, 3503615), (10, 2802892), (17, 1648760), (20, 1401446), (34, 824380), (40, 700723), (47, 596360), (68, 412190), (85, 329752), (94, 298180), (136, 206095), (170, 164876), (188, 149090), (235, 119272), (340, 82438), (376, 74545), (470, 59636), (680, 41219), (799, 35080), (877, 31960), (940, 29818), (1598, 17540), (1754, 15980), (1880, 14909), (3196, 8770), (3508, 7990), (3995, 7016), (4385, 6392)]