28449875

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:204

約数の個数: 32

約数和(自身を含む): 37340160

約数和(自身を除く): 8890285

約数列:

[1, 5, 25, 43, 67, 79, 125, 215, 335, 395, 1075, 1675, 1975, 2881, 3397, 5293, 5375, 8375, 9875, 14405, 16985, 26465, 72025, 84925, 132325, 227599, 360125, 424625, 661625, 1137995, 5689975, 28449875]

約数ペア:

[(1, 28449875), (5, 5689975), (25, 1137995), (43, 661625), (67, 424625), (79, 360125), (125, 227599), (215, 132325), (335, 84925), (395, 72025), (1075, 26465), (1675, 16985), (1975, 14405), (2881, 9875), (3397, 8375), (5293, 5375)]