20488080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4493}}^1$

素因数の和:4528

約数の個数: 80

約数和(自身を含む): 66870720

約数和(自身を除く): 46382640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4493, 4560, 8986, 13479, 17972, 22465, 26958, 35944, 44930, 53916, 67395, 71888, 85367, 89860, 107832, 134790, 170734, 179720, 215664, 256101, 269580, 341468, 359440, 426835, 512202, 539160, 682936, 853670, 1024404, 1078320, 1280505, 1365872, 1707340, 2048808, 2561010, 3414680, 4097616, 5122020, 6829360, 10244040, 20488080]

約数ペア:

[(1, 20488080), (2, 10244040), (3, 6829360), (4, 5122020), (5, 4097616), (6, 3414680), (8, 2561010), (10, 2048808), (12, 1707340), (15, 1365872), (16, 1280505), (19, 1078320), (20, 1024404), (24, 853670), (30, 682936), (38, 539160), (40, 512202), (48, 426835), (57, 359440), (60, 341468), (76, 269580), (80, 256101), (95, 215664), (114, 179720), (120, 170734), (152, 134790), (190, 107832), (228, 89860), (240, 85367), (285, 71888), (304, 67395), (380, 53916), (456, 44930), (570, 35944), (760, 26958), (912, 22465), (1140, 17972), (1520, 13479), (2280, 8986), (4493, 4560)]