161485408

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1997}}^1$

素因数の和:2052

約数の個数: 72

約数和(自身を含む): 383663952

約数和(自身を除く): 222178544

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 361, 532, 608, 722, 1064, 1444, 1997, 2128, 2527, 2888, 3994, 4256, 5054, 5776, 7988, 10108, 11552, 13979, 15976, 20216, 27958, 31952, 37943, 40432, 55916, 63904, 75886, 80864, 111832, 151772, 223664, 265601, 303544, 447328, 531202, 607088, 720917, 1062404, 1214176, 1441834, 2124808, 2883668, 4249616, 5046419, 5767336, 8499232, 10092838, 11534672, 20185676, 23069344, 40371352, 80742704, 161485408]

約数ペア:

[(1, 161485408), (2, 80742704), (4, 40371352), (7, 23069344), (8, 20185676), (14, 11534672), (16, 10092838), (19, 8499232), (28, 5767336), (32, 5046419), (38, 4249616), (56, 2883668), (76, 2124808), (112, 1441834), (133, 1214176), (152, 1062404), (224, 720917), (266, 607088), (304, 531202), (361, 447328), (532, 303544), (608, 265601), (722, 223664), (1064, 151772), (1444, 111832), (1997, 80864), (2128, 75886), (2527, 63904), (2888, 55916), (3994, 40432), (4256, 37943), (5054, 31952), (5776, 27958), (7988, 20216), (10108, 15976), (11552, 13979)]