80712808

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{199}}^1\times {\mathrm{419}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 167580000

約数和(自身を除く): 86867192

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 199, 242, 398, 419, 484, 796, 838, 968, 1592, 1676, 2189, 3352, 4378, 4609, 8756, 9218, 17512, 18436, 24079, 36872, 48158, 50699, 83381, 96316, 101398, 166762, 192632, 202796, 333524, 405592, 667048, 917191, 1834382, 3668764, 7337528, 10089101, 20178202, 40356404, 80712808]

約数ペア:

[(1, 80712808), (2, 40356404), (4, 20178202), (8, 10089101), (11, 7337528), (22, 3668764), (44, 1834382), (88, 917191), (121, 667048), (199, 405592), (242, 333524), (398, 202796), (419, 192632), (484, 166762), (796, 101398), (838, 96316), (968, 83381), (1592, 50699), (1676, 48158), (2189, 36872), (3352, 24079), (4378, 18436), (4609, 17512), (8756, 9218)]