219860820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1221449}}^1$

素因数の和:1221464

約数の個数: 36

約数和(自身を含む): 666911700

約数和(自身を除く): 447050880

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1221449, 2442898, 3664347, 4885796, 6107245, 7328694, 10993041, 12214490, 14657388, 18321735, 21986082, 24428980, 36643470, 43972164, 54965205, 73286940, 109930410, 219860820]

約数ペア:

[(1, 219860820), (2, 109930410), (3, 73286940), (4, 54965205), (5, 43972164), (6, 36643470), (9, 24428980), (10, 21986082), (12, 18321735), (15, 14657388), (18, 12214490), (20, 10993041), (30, 7328694), (36, 6107245), (45, 4885796), (60, 3664347), (90, 2442898), (180, 1221449)]