18360785

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 24330240

約数和(自身を除く): 5969455

約数列:

[1, 5, 23, 43, 47, 79, 115, 215, 235, 395, 989, 1081, 1817, 2021, 3397, 3713, 4945, 5405, 9085, 10105, 16985, 18565, 46483, 78131, 85399, 159659, 232415, 390655, 426995, 798295, 3672157, 18360785]

約数ペア:

[(1, 18360785), (5, 3672157), (23, 798295), (43, 426995), (47, 390655), (79, 232415), (115, 159659), (215, 85399), (235, 78131), (395, 46483), (989, 18565), (1081, 16985), (1817, 10105), (2021, 9085), (3397, 5405), (3713, 4945)]