20198340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{112213}}^1$

素因数の和:112228

約数の個数: 36

約数和(自身を含む): 61268844

約数和(自身を除く): 41070504

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 112213, 224426, 336639, 448852, 561065, 673278, 1009917, 1122130, 1346556, 1683195, 2019834, 2244260, 3366390, 4039668, 5049585, 6732780, 10099170, 20198340]

約数ペア:

[(1, 20198340), (2, 10099170), (3, 6732780), (4, 5049585), (5, 4039668), (6, 3366390), (9, 2244260), (10, 2019834), (12, 1683195), (15, 1346556), (18, 1122130), (20, 1009917), (30, 673278), (36, 561065), (45, 448852), (60, 336639), (90, 224426), (180, 112213)]