19948920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4493}}^1$

素因数の和:4544

約数の個数: 64

約数和(自身を含む): 61477920

約数和(自身を除く): 41529000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 74, 111, 120, 148, 185, 222, 296, 370, 444, 555, 740, 888, 1110, 1480, 2220, 4440, 4493, 8986, 13479, 17972, 22465, 26958, 35944, 44930, 53916, 67395, 89860, 107832, 134790, 166241, 179720, 269580, 332482, 498723, 539160, 664964, 831205, 997446, 1329928, 1662410, 1994892, 2493615, 3324820, 3989784, 4987230, 6649640, 9974460, 19948920]

約数ペア:

[(1, 19948920), (2, 9974460), (3, 6649640), (4, 4987230), (5, 3989784), (6, 3324820), (8, 2493615), (10, 1994892), (12, 1662410), (15, 1329928), (20, 997446), (24, 831205), (30, 664964), (37, 539160), (40, 498723), (60, 332482), (74, 269580), (111, 179720), (120, 166241), (148, 134790), (185, 107832), (222, 89860), (296, 67395), (370, 53916), (444, 44930), (555, 35944), (740, 26958), (888, 22465), (1110, 17972), (1480, 13479), (2220, 8986), (4440, 4493)]