28151620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{953}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 67955328

約数和(自身を除く): 39803708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 953, 1055, 1477, 1906, 2110, 2954, 3812, 4220, 4765, 5908, 6671, 7385, 9530, 13342, 14770, 19060, 26684, 29540, 33355, 66710, 133420, 201083, 402166, 804332, 1005415, 1407581, 2010830, 2815162, 4021660, 5630324, 7037905, 14075810, 28151620]

約数ペア:

[(1, 28151620), (2, 14075810), (4, 7037905), (5, 5630324), (7, 4021660), (10, 2815162), (14, 2010830), (20, 1407581), (28, 1005415), (35, 804332), (70, 402166), (140, 201083), (211, 133420), (422, 66710), (844, 33355), (953, 29540), (1055, 26684), (1477, 19060), (1906, 14770), (2110, 13342), (2954, 9530), (3812, 7385), (4220, 6671), (4765, 5908)]