81921104

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{64811}}^1$

素因数の和:64898

約数の個数: 20

約数和(自身を含む): 160733760

約数和(自身を除く): 78812656

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 64811, 129622, 259244, 518488, 1036976, 5120069, 10240138, 20480276, 40960552, 81921104]

約数ペア:

[(1, 81921104), (2, 40960552), (4, 20480276), (8, 10240138), (16, 5120069), (79, 1036976), (158, 518488), (316, 259244), (632, 129622), (1264, 64811)]