81789398

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{2309}}^1$

素因数の和:2599

約数の個数: 16

約数和(自身を含む): 124740000

約数和(自身を除く): 42950602

約数列:

[1, 2, 89, 178, 199, 398, 2309, 4618, 17711, 35422, 205501, 411002, 459491, 918982, 40894699, 81789398]

約数ペア:

[(1, 81789398), (2, 40894699), (89, 918982), (178, 459491), (199, 411002), (398, 205501), (2309, 35422), (4618, 17711)]