20273225

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 30759936

約数和(自身を除く): 10486711

約数列:

[1, 5, 7, 25, 31, 35, 37, 101, 155, 175, 185, 217, 259, 505, 707, 775, 925, 1085, 1147, 1295, 2525, 3131, 3535, 3737, 5425, 5735, 6475, 8029, 15655, 17675, 18685, 21917, 26159, 28675, 40145, 78275, 93425, 109585, 115847, 130795, 200725, 547925, 579235, 653975, 810929, 2896175, 4054645, 20273225]

約数ペア:

[(1, 20273225), (5, 4054645), (7, 2896175), (25, 810929), (31, 653975), (35, 579235), (37, 547925), (101, 200725), (155, 130795), (175, 115847), (185, 109585), (217, 93425), (259, 78275), (505, 40145), (707, 28675), (775, 26159), (925, 21917), (1085, 18685), (1147, 17675), (1295, 15655), (2525, 8029), (3131, 6475), (3535, 5735), (3737, 5425)]