28905825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1289}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 53746560

約数和(自身を除く): 24840735

約数列:

[1, 3, 5, 13, 15, 23, 25, 39, 65, 69, 75, 115, 195, 299, 325, 345, 575, 897, 975, 1289, 1495, 1725, 3867, 4485, 6445, 7475, 16757, 19335, 22425, 29647, 32225, 50271, 83785, 88941, 96675, 148235, 251355, 385411, 418925, 444705, 741175, 1156233, 1256775, 1927055, 2223525, 5781165, 9635275, 28905825]

約数ペア:

[(1, 28905825), (3, 9635275), (5, 5781165), (13, 2223525), (15, 1927055), (23, 1256775), (25, 1156233), (39, 741175), (65, 444705), (69, 418925), (75, 385411), (115, 251355), (195, 148235), (299, 96675), (325, 88941), (345, 83785), (575, 50271), (897, 32225), (975, 29647), (1289, 22425), (1495, 19335), (1725, 16757), (3867, 7475), (4485, 6445)]