20269568

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:149

約数の個数: 80

約数和(自身を含む): 45666720

約数和(自身を除く): 25397152

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 59, 61, 64, 88, 118, 122, 128, 176, 236, 244, 256, 352, 472, 488, 512, 649, 671, 704, 944, 976, 1298, 1342, 1408, 1888, 1952, 2596, 2684, 2816, 3599, 3776, 3904, 5192, 5368, 5632, 7198, 7552, 7808, 10384, 10736, 14396, 15104, 15616, 20768, 21472, 28792, 30208, 31232, 39589, 41536, 42944, 57584, 79178, 83072, 85888, 115168, 158356, 166144, 171776, 230336, 316712, 332288, 343552, 460672, 633424, 921344, 1266848, 1842688, 2533696, 5067392, 10134784, 20269568]

約数ペア:

[(1, 20269568), (2, 10134784), (4, 5067392), (8, 2533696), (11, 1842688), (16, 1266848), (22, 921344), (32, 633424), (44, 460672), (59, 343552), (61, 332288), (64, 316712), (88, 230336), (118, 171776), (122, 166144), (128, 158356), (176, 115168), (236, 85888), (244, 83072), (256, 79178), (352, 57584), (472, 42944), (488, 41536), (512, 39589), (649, 31232), (671, 30208), (704, 28792), (944, 21472), (976, 20768), (1298, 15616), (1342, 15104), (1408, 14396), (1888, 10736), (1952, 10384), (2596, 7808), (2684, 7552), (2816, 7198), (3599, 5632), (3776, 5368), (3904, 5192)]