15621620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{463}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 37728768

約数和(自身を除く): 22107148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 241, 463, 482, 926, 964, 1205, 1687, 1852, 2315, 2410, 3241, 3374, 4630, 4820, 6482, 6748, 8435, 9260, 12964, 16205, 16870, 32410, 33740, 64820, 111583, 223166, 446332, 557915, 781081, 1115830, 1562162, 2231660, 3124324, 3905405, 7810810, 15621620]

約数ペア:

[(1, 15621620), (2, 7810810), (4, 3905405), (5, 3124324), (7, 2231660), (10, 1562162), (14, 1115830), (20, 781081), (28, 557915), (35, 446332), (70, 223166), (140, 111583), (241, 64820), (463, 33740), (482, 32410), (926, 16870), (964, 16205), (1205, 12964), (1687, 9260), (1852, 8435), (2315, 6748), (2410, 6482), (3241, 4820), (3374, 4630)]