18880994495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{72901}}^1$

素因数の和:73211

約数の個数: 32

約数和(自身を含む): 26265715776

約数和(自身を除く): 7384721281

約数列:

[1, 5, 11, 17, 55, 85, 187, 277, 935, 1385, 3047, 4709, 15235, 23545, 51799, 72901, 258995, 364505, 801911, 1239317, 4009555, 6196585, 13632487, 20193577, 68162435, 100967885, 222129347, 343290809, 1110646735, 1716454045, 3776198899, 18880994495]

約数ペア:

[(1, 18880994495), (5, 3776198899), (11, 1716454045), (17, 1110646735), (55, 343290809), (85, 222129347), (187, 100967885), (277, 68162435), (935, 20193577), (1385, 13632487), (3047, 6196585), (4709, 4009555), (15235, 1239317), (23545, 801911), (51799, 364505), (72901, 258995)]