31357840

素因数分解:

$2^4\times 5^1\times {\mathrm{593}}^1\times {\mathrm{661}}^1$

素因数の和:1267

約数の個数: 40

約数和(自身を含む): 73140408

約数和(自身を除く): 41782568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 593, 661, 1186, 1322, 2372, 2644, 2965, 3305, 4744, 5288, 5930, 6610, 9488, 10576, 11860, 13220, 23720, 26440, 47440, 52880, 391973, 783946, 1567892, 1959865, 3135784, 3919730, 6271568, 7839460, 15678920, 31357840]

約数ペア:

[(1, 31357840), (2, 15678920), (4, 7839460), (5, 6271568), (8, 3919730), (10, 3135784), (16, 1959865), (20, 1567892), (40, 783946), (80, 391973), (593, 52880), (661, 47440), (1186, 26440), (1322, 23720), (2372, 13220), (2644, 11860), (2965, 10576), (3305, 9488), (4744, 6610), (5288, 5930)]