18209950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 37403856

約数和(自身を除く): 19193906

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 113, 226, 275, 293, 550, 565, 586, 1130, 1243, 1465, 2486, 2825, 2930, 3223, 5650, 6215, 6446, 7325, 12430, 14650, 16115, 31075, 32230, 33109, 62150, 66218, 80575, 161150, 165545, 331090, 364199, 728398, 827725, 1655450, 1820995, 3641990, 9104975, 18209950]

約数ペア:

[(1, 18209950), (2, 9104975), (5, 3641990), (10, 1820995), (11, 1655450), (22, 827725), (25, 728398), (50, 364199), (55, 331090), (110, 165545), (113, 161150), (226, 80575), (275, 66218), (293, 62150), (550, 33109), (565, 32230), (586, 31075), (1130, 16115), (1243, 14650), (1465, 12430), (2486, 7325), (2825, 6446), (2930, 6215), (3223, 5650)]