81558920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{88651}}^1$

素因数の和:88685

約数の個数: 32

約数和(自身を含む): 191488320

約数和(自身を除く): 109929400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 88651, 177302, 354604, 443255, 709208, 886510, 1773020, 2038973, 3546040, 4077946, 8155892, 10194865, 16311784, 20389730, 40779460, 81558920]

約数ペア:

[(1, 81558920), (2, 40779460), (4, 20389730), (5, 16311784), (8, 10194865), (10, 8155892), (20, 4077946), (23, 3546040), (40, 2038973), (46, 1773020), (92, 886510), (115, 709208), (184, 443255), (230, 354604), (460, 177302), (920, 88651)]