28433680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 73209600

約数和(自身を除く): 44775920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 316, 395, 409, 440, 632, 790, 818, 869, 880, 1264, 1580, 1636, 1738, 2045, 3160, 3272, 3476, 4090, 4345, 4499, 6320, 6544, 6952, 8180, 8690, 8998, 13904, 16360, 17380, 17996, 22495, 32311, 32720, 34760, 35992, 44990, 64622, 69520, 71984, 89980, 129244, 161555, 179960, 258488, 323110, 355421, 359920, 516976, 646220, 710842, 1292440, 1421684, 1777105, 2584880, 2843368, 3554210, 5686736, 7108420, 14216840, 28433680]

約数ペア:

[(1, 28433680), (2, 14216840), (4, 7108420), (5, 5686736), (8, 3554210), (10, 2843368), (11, 2584880), (16, 1777105), (20, 1421684), (22, 1292440), (40, 710842), (44, 646220), (55, 516976), (79, 359920), (80, 355421), (88, 323110), (110, 258488), (158, 179960), (176, 161555), (220, 129244), (316, 89980), (395, 71984), (409, 69520), (440, 64622), (632, 44990), (790, 35992), (818, 34760), (869, 32720), (880, 32311), (1264, 22495), (1580, 17996), (1636, 17380), (1738, 16360), (2045, 13904), (3160, 8998), (3272, 8690), (3476, 8180), (4090, 6952), (4345, 6544), (4499, 6320)]