216921856

素因数分解:

$2^8\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:585

約数の個数: 72

約数和(自身を含む): 456220800

約数和(自身を除く): 239298944

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 61, 64, 116, 122, 128, 232, 244, 256, 464, 479, 488, 928, 958, 976, 1769, 1856, 1916, 1952, 3538, 3712, 3832, 3904, 7076, 7424, 7664, 7808, 13891, 14152, 15328, 15616, 27782, 28304, 29219, 30656, 55564, 56608, 58438, 61312, 111128, 113216, 116876, 122624, 222256, 226432, 233752, 444512, 452864, 467504, 847351, 889024, 935008, 1694702, 1778048, 1870016, 3389404, 3556096, 3740032, 6778808, 7480064, 13557616, 27115232, 54230464, 108460928, 216921856]

約数ペア:

[(1, 216921856), (2, 108460928), (4, 54230464), (8, 27115232), (16, 13557616), (29, 7480064), (32, 6778808), (58, 3740032), (61, 3556096), (64, 3389404), (116, 1870016), (122, 1778048), (128, 1694702), (232, 935008), (244, 889024), (256, 847351), (464, 467504), (479, 452864), (488, 444512), (928, 233752), (958, 226432), (976, 222256), (1769, 122624), (1856, 116876), (1916, 113216), (1952, 111128), (3538, 61312), (3712, 58438), (3832, 56608), (3904, 55564), (7076, 30656), (7424, 29219), (7664, 28304), (7808, 27782), (13891, 15616), (14152, 15328)]