20396464

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{401}}^1$

素因数の和:454

約数の個数: 60

約数和(自身を含む): 45910008

約数和(自身を除く): 25513544

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 289, 374, 401, 578, 748, 802, 1156, 1496, 1604, 2312, 2992, 3179, 3208, 4411, 4624, 6358, 6416, 6817, 8822, 12716, 13634, 17644, 25432, 27268, 35288, 50864, 54536, 70576, 74987, 109072, 115889, 149974, 231778, 299948, 463556, 599896, 927112, 1199792, 1274779, 1854224, 2549558, 5099116, 10198232, 20396464]

約数ペア:

[(1, 20396464), (2, 10198232), (4, 5099116), (8, 2549558), (11, 1854224), (16, 1274779), (17, 1199792), (22, 927112), (34, 599896), (44, 463556), (68, 299948), (88, 231778), (136, 149974), (176, 115889), (187, 109072), (272, 74987), (289, 70576), (374, 54536), (401, 50864), (578, 35288), (748, 27268), (802, 25432), (1156, 17644), (1496, 13634), (1604, 12716), (2312, 8822), (2992, 6817), (3179, 6416), (3208, 6358), (4411, 4624)]