81085140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{450473}}^1$

素因数の和:450488

約数の個数: 36

約数和(自身を含む): 245958804

約数和(自身を除く): 164873664

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 450473, 900946, 1351419, 1801892, 2252365, 2702838, 4054257, 4504730, 5405676, 6757095, 8108514, 9009460, 13514190, 16217028, 20271285, 27028380, 40542570, 81085140]

約数ペア:

[(1, 81085140), (2, 40542570), (3, 27028380), (4, 20271285), (5, 16217028), (6, 13514190), (9, 9009460), (10, 8108514), (12, 6757095), (15, 5405676), (18, 4504730), (20, 4054257), (30, 2702838), (36, 2252365), (45, 1801892), (60, 1351419), (90, 900946), (180, 450473)]