81498172

素因数分解:

$2^2\times 7^3\times {\mathrm{191}}^1\times {\mathrm{311}}^1$

素因数の和:527

約数の個数: 48

約数和(自身を含む): 167731200

約数和(自身を除く): 86233028

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 191, 196, 311, 343, 382, 622, 686, 764, 1244, 1337, 1372, 2177, 2674, 4354, 5348, 8708, 9359, 15239, 18718, 30478, 37436, 59401, 60956, 65513, 106673, 118802, 131026, 213346, 237604, 262052, 415807, 426692, 831614, 1663228, 2910649, 5821298, 11642596, 20374543, 40749086, 81498172]

約数ペア:

[(1, 81498172), (2, 40749086), (4, 20374543), (7, 11642596), (14, 5821298), (28, 2910649), (49, 1663228), (98, 831614), (191, 426692), (196, 415807), (311, 262052), (343, 237604), (382, 213346), (622, 131026), (686, 118802), (764, 106673), (1244, 65513), (1337, 60956), (1372, 59401), (2177, 37436), (2674, 30478), (4354, 18718), (5348, 15239), (8708, 9359)]