257651303

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 343702464

約数和(自身を除く): 86051161

約数列:

[1, 7, 13, 17, 91, 97, 101, 119, 221, 289, 679, 707, 1261, 1313, 1547, 1649, 1717, 2023, 3757, 8827, 9191, 9797, 11543, 12019, 21437, 22321, 26299, 28033, 29189, 68579, 127361, 150059, 156247, 166549, 196231, 204323, 364429, 379457, 891527, 1165843, 2165137, 2551003, 2656199, 2831333, 15155959, 19819331, 36807329, 257651303]

約数ペア:

[(1, 257651303), (7, 36807329), (13, 19819331), (17, 15155959), (91, 2831333), (97, 2656199), (101, 2551003), (119, 2165137), (221, 1165843), (289, 891527), (679, 379457), (707, 364429), (1261, 204323), (1313, 196231), (1547, 166549), (1649, 156247), (1717, 150059), (2023, 127361), (3757, 68579), (8827, 29189), (9191, 28033), (9797, 26299), (11543, 22321), (12019, 21437)]