81995650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13553}}^1$

素因数の和:13587

約数の個数: 36

約数和(自身を含む): 167649426

約数和(自身を除く): 85653776

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 6050, 13553, 27106, 67765, 135530, 149083, 298166, 338825, 677650, 745415, 1490830, 1639913, 3279826, 3727075, 7454150, 8199565, 16399130, 40997825, 81995650]

約数ペア:

[(1, 81995650), (2, 40997825), (5, 16399130), (10, 8199565), (11, 7454150), (22, 3727075), (25, 3279826), (50, 1639913), (55, 1490830), (110, 745415), (121, 677650), (242, 338825), (275, 298166), (550, 149083), (605, 135530), (1210, 67765), (3025, 27106), (6050, 13553)]