81314768

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{61231}}^1$

素因数の和:61322

約数の個数: 20

約数和(自身を含む): 159448128

約数和(自身を除く): 78133360

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 61231, 122462, 244924, 489848, 979696, 5082173, 10164346, 20328692, 40657384, 81314768]

約数ペア:

[(1, 81314768), (2, 40657384), (4, 20328692), (8, 10164346), (16, 5082173), (83, 979696), (166, 489848), (332, 244924), (664, 122462), (1328, 61231)]