20282416

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 49782528

約数和(自身を除く): 29500112

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 101, 112, 154, 163, 176, 202, 308, 326, 404, 616, 652, 707, 808, 1111, 1141, 1232, 1304, 1414, 1616, 1793, 2222, 2282, 2608, 2828, 3586, 4444, 4564, 5656, 7172, 7777, 8888, 9128, 11312, 12551, 14344, 15554, 16463, 17776, 18256, 25102, 28688, 31108, 32926, 50204, 62216, 65852, 100408, 115241, 124432, 131704, 181093, 200816, 230482, 263408, 362186, 460964, 724372, 921928, 1267651, 1448744, 1843856, 2535302, 2897488, 5070604, 10141208, 20282416]

約数ペア:

[(1, 20282416), (2, 10141208), (4, 5070604), (7, 2897488), (8, 2535302), (11, 1843856), (14, 1448744), (16, 1267651), (22, 921928), (28, 724372), (44, 460964), (56, 362186), (77, 263408), (88, 230482), (101, 200816), (112, 181093), (154, 131704), (163, 124432), (176, 115241), (202, 100408), (308, 65852), (326, 62216), (404, 50204), (616, 32926), (652, 31108), (707, 28688), (808, 25102), (1111, 18256), (1141, 17776), (1232, 16463), (1304, 15554), (1414, 14344), (1616, 12551), (1793, 11312), (2222, 9128), (2282, 8888), (2608, 7777), (2828, 7172), (3586, 5656), (4444, 4564)]