25906855

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 37103616

約数和(自身を除く): 11196761

約数列:

[1, 5, 13, 23, 31, 43, 65, 115, 155, 169, 215, 299, 403, 559, 713, 845, 989, 1333, 1495, 2015, 2795, 3565, 3887, 4945, 5239, 6665, 7267, 9269, 12857, 17329, 19435, 26195, 30659, 36335, 46345, 64285, 86645, 120497, 153295, 167141, 225277, 398567, 602485, 835705, 1126385, 1992835, 5181371, 25906855]

約数ペア:

[(1, 25906855), (5, 5181371), (13, 1992835), (23, 1126385), (31, 835705), (43, 602485), (65, 398567), (115, 225277), (155, 167141), (169, 153295), (215, 120497), (299, 86645), (403, 64285), (559, 46345), (713, 36335), (845, 30659), (989, 26195), (1333, 19435), (1495, 17329), (2015, 12857), (2795, 9269), (3565, 7267), (3887, 6665), (4945, 5239)]