20563180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{619}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 47496960

約数和(自身を除く): 26933780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 151, 220, 302, 604, 619, 755, 1238, 1510, 1661, 2476, 3020, 3095, 3322, 6190, 6644, 6809, 8305, 12380, 13618, 16610, 27236, 33220, 34045, 68090, 93469, 136180, 186938, 373876, 467345, 934690, 1028159, 1869380, 2056318, 4112636, 5140795, 10281590, 20563180]

約数ペア:

[(1, 20563180), (2, 10281590), (4, 5140795), (5, 4112636), (10, 2056318), (11, 1869380), (20, 1028159), (22, 934690), (44, 467345), (55, 373876), (110, 186938), (151, 136180), (220, 93469), (302, 68090), (604, 34045), (619, 33220), (755, 27236), (1238, 16610), (1510, 13618), (1661, 12380), (2476, 8305), (3020, 6809), (3095, 6644), (3322, 6190)]