20255312

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:468

約数の個数: 80

約数和(自身を含む): 50246784

約数和(自身を除く): 29991472

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 41, 44, 56, 77, 82, 88, 112, 154, 164, 176, 287, 308, 328, 401, 451, 574, 616, 656, 802, 902, 1148, 1232, 1604, 1804, 2296, 2807, 3157, 3208, 3608, 4411, 4592, 5614, 6314, 6416, 7216, 8822, 11228, 12628, 16441, 17644, 22456, 25256, 30877, 32882, 35288, 44912, 50512, 61754, 65764, 70576, 115087, 123508, 131528, 180851, 230174, 247016, 263056, 361702, 460348, 494032, 723404, 920696, 1265957, 1446808, 1841392, 2531914, 2893616, 5063828, 10127656, 20255312]

約数ペア:

[(1, 20255312), (2, 10127656), (4, 5063828), (7, 2893616), (8, 2531914), (11, 1841392), (14, 1446808), (16, 1265957), (22, 920696), (28, 723404), (41, 494032), (44, 460348), (56, 361702), (77, 263056), (82, 247016), (88, 230174), (112, 180851), (154, 131528), (164, 123508), (176, 115087), (287, 70576), (308, 65764), (328, 61754), (401, 50512), (451, 44912), (574, 35288), (616, 32882), (656, 30877), (802, 25256), (902, 22456), (1148, 17644), (1232, 16441), (1604, 12628), (1804, 11228), (2296, 8822), (2807, 7216), (3157, 6416), (3208, 6314), (3608, 5614), (4411, 4592)]