31470280

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{9479}}^1$

素因数の和:9573

約数の個数: 32

約数和(自身を含む): 71668800

約数和(自身を除く): 40198520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 9479, 18958, 37916, 47395, 75832, 94790, 189580, 379160, 786757, 1573514, 3147028, 3933785, 6294056, 7867570, 15735140, 31470280]

約数ペア:

[(1, 31470280), (2, 15735140), (4, 7867570), (5, 6294056), (8, 3933785), (10, 3147028), (20, 1573514), (40, 786757), (83, 379160), (166, 189580), (332, 94790), (415, 75832), (664, 47395), (830, 37916), (1660, 18958), (3320, 9479)]