28393480

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2699}}^1$

素因数の和:2973

約数の個数: 32

約数和(自身を含む): 64152000

約数和(自身を除く): 35758520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 2699, 5260, 5398, 10520, 10796, 13495, 21592, 26990, 53980, 107960, 709837, 1419674, 2839348, 3549185, 5678696, 7098370, 14196740, 28393480]

約数ペア:

[(1, 28393480), (2, 14196740), (4, 7098370), (5, 5678696), (8, 3549185), (10, 2839348), (20, 1419674), (40, 709837), (263, 107960), (526, 53980), (1052, 26990), (1315, 21592), (2104, 13495), (2630, 10796), (2699, 10520), (5260, 5398)]