81064040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{54773}}^1$

素因数の和:54821

約数の個数: 32

約数和(自身を含む): 187327080

約数和(自身を除く): 106263040

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 54773, 109546, 219092, 273865, 438184, 547730, 1095460, 2026601, 2190920, 4053202, 8106404, 10133005, 16212808, 20266010, 40532020, 81064040]

約数ペア:

[(1, 81064040), (2, 40532020), (4, 20266010), (5, 16212808), (8, 10133005), (10, 8106404), (20, 4053202), (37, 2190920), (40, 2026601), (74, 1095460), (148, 547730), (185, 438184), (296, 273865), (370, 219092), (740, 109546), (1480, 54773)]