20689152

素因数分解:

$2^8\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 62791680

約数和(自身を除く): 42102528

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 31, 32, 33, 44, 48, 62, 64, 66, 79, 88, 93, 96, 124, 128, 132, 158, 176, 186, 192, 237, 248, 256, 264, 316, 341, 352, 372, 384, 474, 496, 528, 632, 682, 704, 744, 768, 869, 948, 992, 1023, 1056, 1264, 1364, 1408, 1488, 1738, 1896, 1984, 2046, 2112, 2449, 2528, 2607, 2728, 2816, 2976, 3476, 3792, 3968, 4092, 4224, 4898, 5056, 5214, 5456, 5952, 6952, 7347, 7584, 7936, 8184, 8448, 9796, 10112, 10428, 10912, 11904, 13904, 14694, 15168, 16368, 19592, 20224, 20856, 21824, 23808, 26939, 27808, 29388, 30336, 32736, 39184, 41712, 43648, 53878, 55616, 58776, 60672, 65472, 78368, 80817, 83424, 87296, 107756, 111232, 117552, 130944, 156736, 161634, 166848, 215512, 222464, 235104, 261888, 313472, 323268, 333696, 431024, 470208, 626944, 646536, 667392, 862048, 940416, 1293072, 1724096, 1880832, 2586144, 3448192, 5172288, 6896384, 10344576, 20689152]

約数ペア:

[(1, 20689152), (2, 10344576), (3, 6896384), (4, 5172288), (6, 3448192), (8, 2586144), (11, 1880832), (12, 1724096), (16, 1293072), (22, 940416), (24, 862048), (31, 667392), (32, 646536), (33, 626944), (44, 470208), (48, 431024), (62, 333696), (64, 323268), (66, 313472), (79, 261888), (88, 235104), (93, 222464), (96, 215512), (124, 166848), (128, 161634), (132, 156736), (158, 130944), (176, 117552), (186, 111232), (192, 107756), (237, 87296), (248, 83424), (256, 80817), (264, 78368), (316, 65472), (341, 60672), (352, 58776), (372, 55616), (384, 53878), (474, 43648), (496, 41712), (528, 39184), (632, 32736), (682, 30336), (704, 29388), (744, 27808), (768, 26939), (869, 23808), (948, 21824), (992, 20856), (1023, 20224), (1056, 19592), (1264, 16368), (1364, 15168), (1408, 14694), (1488, 13904), (1738, 11904), (1896, 10912), (1984, 10428), (2046, 10112), (2112, 9796), (2449, 8448), (2528, 8184), (2607, 7936), (2728, 7584), (2816, 7347), (2976, 6952), (3476, 5952), (3792, 5456), (3968, 5214), (4092, 5056), (4224, 4898)]