281145215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2113}}^1$

素因数の和:2243

約数の個数: 32

約数和(自身を含む): 383564160

約数和(自身を除く): 102418945

約数列:

[1, 5, 13, 23, 65, 89, 115, 299, 445, 1157, 1495, 2047, 2113, 5785, 10235, 10565, 26611, 27469, 48599, 133055, 137345, 188057, 242995, 631787, 940285, 2444741, 3158935, 4325311, 12223705, 21626555, 56229043, 281145215]

約数ペア:

[(1, 281145215), (5, 56229043), (13, 21626555), (23, 12223705), (65, 4325311), (89, 3158935), (115, 2444741), (299, 940285), (445, 631787), (1157, 242995), (1495, 188057), (2047, 137345), (2113, 133055), (5785, 48599), (10235, 27469), (10565, 26611)]