28978625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1049}}^1$

素因数の和:1094

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 12298975

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 325, 425, 1049, 1105, 1625, 2125, 5245, 5525, 13637, 17833, 26225, 27625, 68185, 89165, 131125, 231829, 340925, 445825, 1159145, 1704625, 2229125, 5795725, 28978625]

約数ペア:

[(1, 28978625), (5, 5795725), (13, 2229125), (17, 1704625), (25, 1159145), (65, 445825), (85, 340925), (125, 231829), (221, 131125), (325, 89165), (425, 68185), (1049, 27625), (1105, 26225), (1625, 17833), (2125, 13637), (5245, 5525)]