238815915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1181}}^1$

素因数の和:1280

約数の個数: 64

約数和(自身を含む): 443221632

約数和(自身を除く): 204405717

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 61, 65, 85, 183, 195, 221, 255, 305, 663, 793, 915, 1037, 1105, 1181, 2379, 3111, 3315, 3543, 3965, 5185, 5905, 11895, 13481, 15353, 15555, 17715, 20077, 40443, 46059, 60231, 67405, 72041, 76765, 100385, 202215, 216123, 230295, 261001, 301155, 360205, 783003, 936533, 1080615, 1224697, 1305005, 2809599, 3674091, 3915015, 4682665, 6123485, 14047995, 15921061, 18370455, 47763183, 79605305, 238815915]

約数ペア:

[(1, 238815915), (3, 79605305), (5, 47763183), (13, 18370455), (15, 15921061), (17, 14047995), (39, 6123485), (51, 4682665), (61, 3915015), (65, 3674091), (85, 2809599), (183, 1305005), (195, 1224697), (221, 1080615), (255, 936533), (305, 783003), (663, 360205), (793, 301155), (915, 261001), (1037, 230295), (1105, 216123), (1181, 202215), (2379, 100385), (3111, 76765), (3315, 72041), (3543, 67405), (3965, 60231), (5185, 46059), (5905, 40443), (11895, 20077), (13481, 17715), (15353, 15555)]