89991505

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 117210240

約数和(自身を除く): 27218735

約数列:

[1, 5, 19, 83, 95, 101, 113, 415, 505, 565, 1577, 1919, 2147, 7885, 8383, 9379, 9595, 10735, 11413, 41915, 46895, 57065, 159277, 178201, 216847, 796385, 891005, 947279, 1084235, 4736395, 17998301, 89991505]

約数ペア:

[(1, 89991505), (5, 17998301), (19, 4736395), (83, 1084235), (95, 947279), (101, 891005), (113, 796385), (415, 216847), (505, 178201), (565, 159277), (1577, 57065), (1919, 46895), (2147, 41915), (7885, 11413), (8383, 10735), (9379, 9595)]