28078860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20347}}^1$

素因数の和:20382

約数の個数: 48

約数和(自身を含む): 82043136

約数和(自身を除く): 53964276

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 20347, 40694, 61041, 81388, 101735, 122082, 203470, 244164, 305205, 406940, 467981, 610410, 935962, 1220820, 1403943, 1871924, 2339905, 2807886, 4679810, 5615772, 7019715, 9359620, 14039430, 28078860]

約数ペア:

[(1, 28078860), (2, 14039430), (3, 9359620), (4, 7019715), (5, 5615772), (6, 4679810), (10, 2807886), (12, 2339905), (15, 1871924), (20, 1403943), (23, 1220820), (30, 935962), (46, 610410), (60, 467981), (69, 406940), (92, 305205), (115, 244164), (138, 203470), (230, 122082), (276, 101735), (345, 81388), (460, 61041), (690, 40694), (1380, 20347)]