20789725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4447}}^1$

素因数の和:4485

約数の個数: 24

約数和(自身を含む): 29783808

約数和(自身を除く): 8994083

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4447, 4675, 22235, 48917, 75599, 111175, 244585, 377995, 831589, 1222925, 1889975, 4157945, 20789725]

約数ペア:

[(1, 20789725), (5, 4157945), (11, 1889975), (17, 1222925), (25, 831589), (55, 377995), (85, 244585), (187, 111175), (275, 75599), (425, 48917), (935, 22235), (4447, 4675)]