51498520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{379}}^1$

素因数の和:512

約数の個数: 64

約数和(自身を含む): 120384000

約数和(自身を除く): 68885480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 379, 395, 430, 632, 758, 790, 860, 1516, 1580, 1720, 1895, 3032, 3160, 3397, 3790, 6794, 7580, 13588, 15160, 16297, 16985, 27176, 29941, 32594, 33970, 59882, 65188, 67940, 81485, 119764, 130376, 135880, 149705, 162970, 239528, 299410, 325940, 598820, 651880, 1197640, 1287463, 2574926, 5149852, 6437315, 10299704, 12874630, 25749260, 51498520]

約数ペア:

[(1, 51498520), (2, 25749260), (4, 12874630), (5, 10299704), (8, 6437315), (10, 5149852), (20, 2574926), (40, 1287463), (43, 1197640), (79, 651880), (86, 598820), (158, 325940), (172, 299410), (215, 239528), (316, 162970), (344, 149705), (379, 135880), (395, 130376), (430, 119764), (632, 81485), (758, 67940), (790, 65188), (860, 59882), (1516, 33970), (1580, 32594), (1720, 29941), (1895, 27176), (3032, 16985), (3160, 16297), (3397, 15160), (3790, 13588), (6794, 7580)]