1681264

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:217

約数の個数: 40

約数和(自身を含む): 3593520

約数和(自身を除く): 1912256

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 104, 118, 137, 208, 236, 274, 472, 548, 767, 944, 1096, 1534, 1781, 2192, 3068, 3562, 6136, 7124, 8083, 12272, 14248, 16166, 28496, 32332, 64664, 105079, 129328, 210158, 420316, 840632, 1681264]

約数ペア:

[(1, 1681264), (2, 840632), (4, 420316), (8, 210158), (13, 129328), (16, 105079), (26, 64664), (52, 32332), (59, 28496), (104, 16166), (118, 14248), (137, 12272), (208, 8083), (236, 7124), (274, 6136), (472, 3562), (548, 3068), (767, 2192), (944, 1781), (1096, 1534)]