20099552

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:240

約数の個数: 72

約数和(自身を含む): 45246600

約数和(自身を除く): 25147048

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 32, 44, 58, 88, 116, 121, 176, 179, 232, 242, 319, 352, 358, 464, 484, 638, 716, 928, 968, 1276, 1432, 1936, 1969, 2552, 2864, 3509, 3872, 3938, 5104, 5191, 5728, 7018, 7876, 10208, 10382, 14036, 15752, 20764, 21659, 28072, 31504, 41528, 43318, 56144, 57101, 63008, 83056, 86636, 112288, 114202, 166112, 173272, 228404, 346544, 456808, 628111, 693088, 913616, 1256222, 1827232, 2512444, 5024888, 10049776, 20099552]

約数ペア:

[(1, 20099552), (2, 10049776), (4, 5024888), (8, 2512444), (11, 1827232), (16, 1256222), (22, 913616), (29, 693088), (32, 628111), (44, 456808), (58, 346544), (88, 228404), (116, 173272), (121, 166112), (176, 114202), (179, 112288), (232, 86636), (242, 83056), (319, 63008), (352, 57101), (358, 56144), (464, 43318), (484, 41528), (638, 31504), (716, 28072), (928, 21659), (968, 20764), (1276, 15752), (1432, 14036), (1936, 10382), (1969, 10208), (2552, 7876), (2864, 7018), (3509, 5728), (3872, 5191), (3938, 5104)]