1640384

素因数分解:

$2^6\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 42

約数和(自身を含む): 3483864

約数和(自身を除く): 1843480

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 71, 76, 142, 152, 284, 304, 361, 568, 608, 722, 1136, 1216, 1349, 1444, 2272, 2698, 2888, 4544, 5396, 5776, 10792, 11552, 21584, 23104, 25631, 43168, 51262, 86336, 102524, 205048, 410096, 820192, 1640384]

約数ペア:

[(1, 1640384), (2, 820192), (4, 410096), (8, 205048), (16, 102524), (19, 86336), (32, 51262), (38, 43168), (64, 25631), (71, 23104), (76, 21584), (142, 11552), (152, 10792), (284, 5776), (304, 5396), (361, 4544), (568, 2888), (608, 2698), (722, 2272), (1136, 1444), (1216, 1349)]