71947480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163517}}^1$

素因数の和:163539

約数の個数: 32

約数和(自身を含む): 176599440

約数和(自身を除く): 104651960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 163517, 327034, 654068, 817585, 1308136, 1635170, 1798687, 3270340, 3597374, 6540680, 7194748, 8993435, 14389496, 17986870, 35973740, 71947480]

約数ペア:

[(1, 71947480), (2, 35973740), (4, 17986870), (5, 14389496), (8, 8993435), (10, 7194748), (11, 6540680), (20, 3597374), (22, 3270340), (40, 1798687), (44, 1635170), (55, 1308136), (88, 817585), (110, 654068), (220, 327034), (440, 163517)]