281530040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17293}}^1$

素因数の和:17352

約数の個数: 64

約数和(自身を含む): 709745760

約数和(自身を除く): 428215720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 2035, 3256, 4070, 8140, 16280, 17293, 34586, 69172, 86465, 138344, 172930, 190223, 345860, 380446, 639841, 691720, 760892, 951115, 1279682, 1521784, 1902230, 2559364, 3199205, 3804460, 5118728, 6398410, 7038251, 7608920, 12796820, 14076502, 25593640, 28153004, 35191255, 56306008, 70382510, 140765020, 281530040]

約数ペア:

[(1, 281530040), (2, 140765020), (4, 70382510), (5, 56306008), (8, 35191255), (10, 28153004), (11, 25593640), (20, 14076502), (22, 12796820), (37, 7608920), (40, 7038251), (44, 6398410), (55, 5118728), (74, 3804460), (88, 3199205), (110, 2559364), (148, 1902230), (185, 1521784), (220, 1279682), (296, 951115), (370, 760892), (407, 691720), (440, 639841), (740, 380446), (814, 345860), (1480, 190223), (1628, 172930), (2035, 138344), (3256, 86465), (4070, 69172), (8140, 34586), (16280, 17293)]