20746550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{563}}^1$

素因数の和:653

約数の個数: 48

約数和(自身を含む): 42800832

約数和(自身を除く): 22054282

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 67, 110, 134, 275, 335, 550, 563, 670, 737, 1126, 1474, 1675, 2815, 3350, 3685, 5630, 6193, 7370, 12386, 14075, 18425, 28150, 30965, 36850, 37721, 61930, 75442, 154825, 188605, 309650, 377210, 414931, 829862, 943025, 1886050, 2074655, 4149310, 10373275, 20746550]

約数ペア:

[(1, 20746550), (2, 10373275), (5, 4149310), (10, 2074655), (11, 1886050), (22, 943025), (25, 829862), (50, 414931), (55, 377210), (67, 309650), (110, 188605), (134, 154825), (275, 75442), (335, 61930), (550, 37721), (563, 36850), (670, 30965), (737, 28150), (1126, 18425), (1474, 14075), (1675, 12386), (2815, 7370), (3350, 6193), (3685, 5630)]