20908480

素因数分解:

$2^6\times 5^1\times {\mathrm{223}}^1\times {\mathrm{293}}^1$

素因数の和:533

約数の個数: 56

約数和(自身を含む): 50182272

約数和(自身を除く): 29273792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 223, 293, 320, 446, 586, 892, 1115, 1172, 1465, 1784, 2230, 2344, 2930, 3568, 4460, 4688, 5860, 7136, 8920, 9376, 11720, 14272, 17840, 18752, 23440, 35680, 46880, 65339, 71360, 93760, 130678, 261356, 326695, 522712, 653390, 1045424, 1306780, 2090848, 2613560, 4181696, 5227120, 10454240, 20908480]

約数ペア:

[(1, 20908480), (2, 10454240), (4, 5227120), (5, 4181696), (8, 2613560), (10, 2090848), (16, 1306780), (20, 1045424), (32, 653390), (40, 522712), (64, 326695), (80, 261356), (160, 130678), (223, 93760), (293, 71360), (320, 65339), (446, 46880), (586, 35680), (892, 23440), (1115, 18752), (1172, 17840), (1465, 14272), (1784, 11720), (2230, 9376), (2344, 8920), (2930, 7136), (3568, 5860), (4460, 4688)]