20127525

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 37521408

約数和(自身を除く): 17393883

約数列:

[1, 3, 5, 11, 15, 25, 31, 33, 55, 75, 93, 155, 165, 275, 341, 465, 775, 787, 825, 1023, 1705, 2325, 2361, 3935, 5115, 8525, 8657, 11805, 19675, 24397, 25575, 25971, 43285, 59025, 73191, 121985, 129855, 216425, 268367, 365955, 609925, 649275, 805101, 1341835, 1829775, 4025505, 6709175, 20127525]

約数ペア:

[(1, 20127525), (3, 6709175), (5, 4025505), (11, 1829775), (15, 1341835), (25, 805101), (31, 649275), (33, 609925), (55, 365955), (75, 268367), (93, 216425), (155, 129855), (165, 121985), (275, 73191), (341, 59025), (465, 43285), (775, 25971), (787, 25575), (825, 24397), (1023, 19675), (1705, 11805), (2325, 8657), (2361, 8525), (3935, 5115)]