672925420

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1\times {\mathrm{881}}^1$

素因数の和:1282

約数の個数: 48

約数和(自身を含む): 1429305696

約数和(自身を除く): 756380276

約数列:

[1, 2, 4, 5, 10, 20, 181, 211, 362, 422, 724, 844, 881, 905, 1055, 1762, 1810, 2110, 3524, 3620, 4220, 4405, 8810, 17620, 38191, 76382, 152764, 159461, 185891, 190955, 318922, 371782, 381910, 637844, 743564, 763820, 797305, 929455, 1594610, 1858910, 3189220, 3717820, 33646271, 67292542, 134585084, 168231355, 336462710, 672925420]

約数ペア:

[(1, 672925420), (2, 336462710), (4, 168231355), (5, 134585084), (10, 67292542), (20, 33646271), (181, 3717820), (211, 3189220), (362, 1858910), (422, 1594610), (724, 929455), (844, 797305), (881, 763820), (905, 743564), (1055, 637844), (1762, 381910), (1810, 371782), (2110, 318922), (3524, 190955), (3620, 185891), (4220, 159461), (4405, 152764), (8810, 76382), (17620, 38191)]