21158080

素因数分解:

$2^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1787}}^1$

素因数の和:1841

約数の個数: 56

約数和(自身を含む): 51773328

約数和(自身を除く): 30615248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 148, 160, 185, 296, 320, 370, 592, 740, 1184, 1480, 1787, 2368, 2960, 3574, 5920, 7148, 8935, 11840, 14296, 17870, 28592, 35740, 57184, 66119, 71480, 114368, 132238, 142960, 264476, 285920, 330595, 528952, 571840, 661190, 1057904, 1322380, 2115808, 2644760, 4231616, 5289520, 10579040, 21158080]

約数ペア:

[(1, 21158080), (2, 10579040), (4, 5289520), (5, 4231616), (8, 2644760), (10, 2115808), (16, 1322380), (20, 1057904), (32, 661190), (37, 571840), (40, 528952), (64, 330595), (74, 285920), (80, 264476), (148, 142960), (160, 132238), (185, 114368), (296, 71480), (320, 66119), (370, 57184), (592, 35740), (740, 28592), (1184, 17870), (1480, 14296), (1787, 11840), (2368, 8935), (2960, 7148), (3574, 5920)]