28807725

素因数分解:

$3^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{3803}}^1$

素因数の和:3917

約数の個数: 24

約数和(自身を含む): 48112992

約数和(自身を除く): 19305267

約数列:

[1, 3, 5, 15, 25, 75, 101, 303, 505, 1515, 2525, 3803, 7575, 11409, 19015, 57045, 95075, 285225, 384103, 1152309, 1920515, 5761545, 9602575, 28807725]

約数ペア:

[(1, 28807725), (3, 9602575), (5, 5761545), (15, 1920515), (25, 1152309), (75, 384103), (101, 285225), (303, 95075), (505, 57045), (1515, 19015), (2525, 11409), (3803, 7575)]