221268420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1229269}}^1$

素因数の和:1229284

約数の個数: 36

約数和(自身を含む): 671181420

約数和(自身を除く): 449913000

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1229269, 2458538, 3687807, 4917076, 6146345, 7375614, 11063421, 12292690, 14751228, 18439035, 22126842, 24585380, 36878070, 44253684, 55317105, 73756140, 110634210, 221268420]

約数ペア:

[(1, 221268420), (2, 110634210), (3, 73756140), (4, 55317105), (5, 44253684), (6, 36878070), (9, 24585380), (10, 22126842), (12, 18439035), (15, 14751228), (18, 12292690), (20, 11063421), (30, 7375614), (36, 6146345), (45, 4917076), (60, 3687807), (90, 2458538), (180, 1229269)]