28423075

素因数分解:

$5^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 36426240

約数和(自身を除く): 8003165

約数列:

[1, 5, 25, 67, 71, 239, 335, 355, 1195, 1675, 1775, 4757, 5975, 16013, 16969, 23785, 80065, 84845, 118925, 400325, 424225, 1136923, 5684615, 28423075]

約数ペア:

[(1, 28423075), (5, 5684615), (25, 1136923), (67, 424225), (71, 400325), (239, 118925), (335, 84845), (355, 80065), (1195, 23785), (1675, 16969), (1775, 16013), (4757, 5975)]