28724080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4663}}^1$

素因数の和:4694

約数の個数: 80

約数和(自身を含む): 83280384

約数和(自身を除く): 54556304

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 4663, 6160, 9326, 18652, 23315, 32641, 37304, 46630, 51293, 65282, 74608, 93260, 102586, 130564, 163205, 186520, 205172, 256465, 261128, 326410, 359051, 373040, 410344, 512930, 522256, 652820, 718102, 820688, 1025860, 1305640, 1436204, 1795255, 2051720, 2611280, 2872408, 3590510, 4103440, 5744816, 7181020, 14362040, 28724080]

約数ペア:

[(1, 28724080), (2, 14362040), (4, 7181020), (5, 5744816), (7, 4103440), (8, 3590510), (10, 2872408), (11, 2611280), (14, 2051720), (16, 1795255), (20, 1436204), (22, 1305640), (28, 1025860), (35, 820688), (40, 718102), (44, 652820), (55, 522256), (56, 512930), (70, 410344), (77, 373040), (80, 359051), (88, 326410), (110, 261128), (112, 256465), (140, 205172), (154, 186520), (176, 163205), (220, 130564), (280, 102586), (308, 93260), (385, 74608), (440, 65282), (560, 51293), (616, 46630), (770, 37304), (880, 32641), (1232, 23315), (1540, 18652), (3080, 9326), (4663, 6160)]