268786895

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{331}}^1$

素因数の和:424

約数の個数: 36

約数和(自身を含む): 361984248

約数和(自身を除く): 93197353

約数列:

[1, 5, 13, 31, 65, 155, 169, 331, 403, 845, 961, 1655, 2015, 4303, 4805, 5239, 10261, 12493, 21515, 26195, 51305, 55939, 62465, 133393, 162409, 279695, 318091, 666965, 812045, 1590455, 1734109, 4135183, 8670545, 20675915, 53757379, 268786895]

約数ペア:

[(1, 268786895), (5, 53757379), (13, 20675915), (31, 8670545), (65, 4135183), (155, 1734109), (169, 1590455), (331, 812045), (403, 666965), (845, 318091), (961, 279695), (1655, 162409), (2015, 133393), (4303, 62465), (4805, 55939), (5239, 51305), (10261, 26195), (12493, 21515)]