19378255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 26449920

約数和(自身を除く): 7071665

約数列:

[1, 5, 13, 31, 59, 65, 155, 163, 295, 403, 767, 815, 1829, 2015, 2119, 3835, 5053, 9145, 9617, 10595, 23777, 25265, 48085, 65689, 118885, 125021, 298127, 328445, 625105, 1490635, 3875651, 19378255]

約数ペア:

[(1, 19378255), (5, 3875651), (13, 1490635), (31, 625105), (59, 328445), (65, 298127), (155, 125021), (163, 118885), (295, 65689), (403, 48085), (767, 25265), (815, 23777), (1829, 10595), (2015, 9617), (2119, 9145), (3835, 5053)]