201720740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18043}}^1$

素因数の和:18108

約数の個数: 48

約数和(自身を含む): 466834368

約数和(自身を除く): 265113628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 18043, 36086, 72172, 90215, 180430, 234559, 360860, 469118, 775849, 938236, 1172795, 1551698, 2345590, 3103396, 3879245, 4691180, 7758490, 10086037, 15516980, 20172074, 40344148, 50430185, 100860370, 201720740]

約数ペア:

[(1, 201720740), (2, 100860370), (4, 50430185), (5, 40344148), (10, 20172074), (13, 15516980), (20, 10086037), (26, 7758490), (43, 4691180), (52, 3879245), (65, 3103396), (86, 2345590), (130, 1551698), (172, 1172795), (215, 938236), (260, 775849), (430, 469118), (559, 360860), (860, 234559), (1118, 180430), (2236, 90215), (2795, 72172), (5590, 36086), (11180, 18043)]