28750225

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4007}}^1$

素因数の和:4065

約数の個数: 24

約数和(自身を含む): 41747328

約数和(自身を除く): 12997103

約数列:

[1, 5, 7, 25, 35, 41, 175, 205, 287, 1025, 1435, 4007, 7175, 20035, 28049, 100175, 140245, 164287, 701225, 821435, 1150009, 4107175, 5750045, 28750225]

約数ペア:

[(1, 28750225), (5, 5750045), (7, 4107175), (25, 1150009), (35, 821435), (41, 701225), (175, 164287), (205, 140245), (287, 100175), (1025, 28049), (1435, 20035), (4007, 7175)]