31069360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 83476800

約数和(自身を除く): 52407440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 509, 545, 560, 763, 872, 1018, 1090, 1526, 1744, 2036, 2180, 2545, 3052, 3563, 3815, 4072, 4360, 5090, 6104, 7126, 7630, 8144, 8720, 10180, 12208, 14252, 15260, 17815, 20360, 28504, 30520, 35630, 40720, 55481, 57008, 61040, 71260, 110962, 142520, 221924, 277405, 285040, 388367, 443848, 554810, 776734, 887696, 1109620, 1553468, 1941835, 2219240, 3106936, 3883670, 4438480, 6213872, 7767340, 15534680, 31069360]

約数ペア:

[(1, 31069360), (2, 15534680), (4, 7767340), (5, 6213872), (7, 4438480), (8, 3883670), (10, 3106936), (14, 2219240), (16, 1941835), (20, 1553468), (28, 1109620), (35, 887696), (40, 776734), (56, 554810), (70, 443848), (80, 388367), (109, 285040), (112, 277405), (140, 221924), (218, 142520), (280, 110962), (436, 71260), (509, 61040), (545, 57008), (560, 55481), (763, 40720), (872, 35630), (1018, 30520), (1090, 28504), (1526, 20360), (1744, 17815), (2036, 15260), (2180, 14252), (2545, 12208), (3052, 10180), (3563, 8720), (3815, 8144), (4072, 7630), (4360, 7126), (5090, 6104)]