28919475

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9887}}^1$

素因数の和:9916

約数の個数: 36

約数和(自身を含む): 55788096

約数和(自身を除く): 26868621

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 9887, 29661, 49435, 88983, 128531, 148305, 247175, 385593, 444915, 642655, 741525, 1156779, 1927965, 2224575, 3213275, 5783895, 9639825, 28919475]

約数ペア:

[(1, 28919475), (3, 9639825), (5, 5783895), (9, 3213275), (13, 2224575), (15, 1927965), (25, 1156779), (39, 741525), (45, 642655), (65, 444915), (75, 385593), (117, 247175), (195, 148305), (225, 128531), (325, 88983), (585, 49435), (975, 29661), (2925, 9887)]