81798416

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19739}}^1$

素因数の和:19791

約数の個数: 40

約数和(自身を含む): 186029760

約数和(自身を除く): 104231344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 19739, 39478, 78956, 138173, 157912, 276346, 315824, 552692, 730343, 1105384, 1460686, 2210768, 2921372, 5112401, 5842744, 10224802, 11685488, 20449604, 40899208, 81798416]

約数ペア:

[(1, 81798416), (2, 40899208), (4, 20449604), (7, 11685488), (8, 10224802), (14, 5842744), (16, 5112401), (28, 2921372), (37, 2210768), (56, 1460686), (74, 1105384), (112, 730343), (148, 552692), (259, 315824), (296, 276346), (518, 157912), (592, 138173), (1036, 78956), (2072, 39478), (4144, 19739)]