28555784

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 61300800

約数和(自身を除く): 32745016

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 43, 68, 76, 86, 136, 152, 172, 257, 323, 344, 514, 646, 731, 817, 1028, 1292, 1462, 1634, 2056, 2584, 2924, 3268, 4369, 4883, 5848, 6536, 8738, 9766, 11051, 13889, 17476, 19532, 22102, 27778, 34952, 39064, 44204, 55556, 83011, 88408, 111112, 166022, 187867, 209969, 332044, 375734, 419938, 664088, 751468, 839876, 1502936, 1679752, 3569473, 7138946, 14277892, 28555784]

約数ペア:

[(1, 28555784), (2, 14277892), (4, 7138946), (8, 3569473), (17, 1679752), (19, 1502936), (34, 839876), (38, 751468), (43, 664088), (68, 419938), (76, 375734), (86, 332044), (136, 209969), (152, 187867), (172, 166022), (257, 111112), (323, 88408), (344, 83011), (514, 55556), (646, 44204), (731, 39064), (817, 34952), (1028, 27778), (1292, 22102), (1462, 19532), (1634, 17476), (2056, 13889), (2584, 11051), (2924, 9766), (3268, 8738), (4369, 6536), (4883, 5848)]