71454680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{647}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 176359680

約数和(自身を除く): 104905000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 251, 440, 502, 647, 1004, 1255, 1294, 2008, 2510, 2588, 2761, 3235, 5020, 5176, 5522, 6470, 7117, 10040, 11044, 12940, 13805, 14234, 22088, 25880, 27610, 28468, 35585, 55220, 56936, 71170, 110440, 142340, 162397, 284680, 324794, 649588, 811985, 1299176, 1623970, 1786367, 3247940, 3572734, 6495880, 7145468, 8931835, 14290936, 17863670, 35727340, 71454680]

約数ペア:

[(1, 71454680), (2, 35727340), (4, 17863670), (5, 14290936), (8, 8931835), (10, 7145468), (11, 6495880), (20, 3572734), (22, 3247940), (40, 1786367), (44, 1623970), (55, 1299176), (88, 811985), (110, 649588), (220, 324794), (251, 284680), (440, 162397), (502, 142340), (647, 110440), (1004, 71170), (1255, 56936), (1294, 55220), (2008, 35585), (2510, 28468), (2588, 27610), (2761, 25880), (3235, 22088), (5020, 14234), (5176, 13805), (5522, 12940), (6470, 11044), (7117, 10040)]