31148720

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1103}}^1$

素因数の和:1469

約数の個数: 40

約数和(自身を含む): 72691776

約数和(自身を除く): 41543056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 1103, 1412, 1765, 2206, 2824, 3530, 4412, 5515, 5648, 7060, 8824, 11030, 14120, 17648, 22060, 28240, 44120, 88240, 389359, 778718, 1557436, 1946795, 3114872, 3893590, 6229744, 7787180, 15574360, 31148720]

約数ペア:

[(1, 31148720), (2, 15574360), (4, 7787180), (5, 6229744), (8, 3893590), (10, 3114872), (16, 1946795), (20, 1557436), (40, 778718), (80, 389359), (353, 88240), (706, 44120), (1103, 28240), (1412, 22060), (1765, 17648), (2206, 14120), (2824, 11030), (3530, 8824), (4412, 7060), (5515, 5648)]