18385015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 25546752

約数和(自身を除く): 7161737

約数列:

[1, 5, 11, 31, 41, 55, 155, 205, 263, 341, 451, 1271, 1315, 1705, 2255, 2893, 6355, 8153, 10783, 13981, 14465, 40765, 53915, 69905, 89683, 118613, 334273, 448415, 593065, 1671365, 3677003, 18385015]

約数ペア:

[(1, 18385015), (5, 3677003), (11, 1671365), (31, 593065), (41, 448415), (55, 334273), (155, 118613), (205, 89683), (263, 69905), (341, 53915), (451, 40765), (1271, 14465), (1315, 13981), (1705, 10783), (2255, 8153), (2893, 6355)]