28764555

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 47277120

約数和(自身を除く): 18512565

約数列:

[1, 3, 5, 15, 73, 109, 219, 241, 327, 365, 545, 723, 1095, 1205, 1635, 3615, 7957, 17593, 23871, 26269, 39785, 52779, 78807, 87965, 119355, 131345, 263895, 394035, 1917637, 5752911, 9588185, 28764555]

約数ペア:

[(1, 28764555), (3, 9588185), (5, 5752911), (15, 1917637), (73, 394035), (109, 263895), (219, 131345), (241, 119355), (327, 87965), (365, 78807), (545, 52779), (723, 39785), (1095, 26269), (1205, 23871), (1635, 17593), (3615, 7957)]