31411620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1601}}^1$

素因数の和:1725

約数の個数: 72

約数和(自身を含む): 96216120

約数和(自身を除く): 64804500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1601, 1635, 1962, 2180, 3202, 3270, 3924, 4803, 4905, 6404, 6540, 8005, 9606, 9810, 14409, 16010, 19212, 19620, 24015, 28818, 32020, 48030, 57636, 72045, 96060, 144090, 174509, 288180, 349018, 523527, 698036, 872545, 1047054, 1570581, 1745090, 2094108, 2617635, 3141162, 3490180, 5235270, 6282324, 7852905, 10470540, 15705810, 31411620]

約数ペア:

[(1, 31411620), (2, 15705810), (3, 10470540), (4, 7852905), (5, 6282324), (6, 5235270), (9, 3490180), (10, 3141162), (12, 2617635), (15, 2094108), (18, 1745090), (20, 1570581), (30, 1047054), (36, 872545), (45, 698036), (60, 523527), (90, 349018), (109, 288180), (180, 174509), (218, 144090), (327, 96060), (436, 72045), (545, 57636), (654, 48030), (981, 32020), (1090, 28818), (1308, 24015), (1601, 19620), (1635, 19212), (1962, 16010), (2180, 14409), (3202, 9810), (3270, 9606), (3924, 8005), (4803, 6540), (4905, 6404)]