18806820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1021}}^1$

素因数の和:1340

約数の個数: 48

約数和(自身を含む): 52882368

約数和(自身を除く): 34075548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 307, 614, 921, 1021, 1228, 1535, 1842, 2042, 3063, 3070, 3684, 4084, 4605, 5105, 6126, 6140, 9210, 10210, 12252, 15315, 18420, 20420, 30630, 61260, 313447, 626894, 940341, 1253788, 1567235, 1880682, 3134470, 3761364, 4701705, 6268940, 9403410, 18806820]

約数ペア:

[(1, 18806820), (2, 9403410), (3, 6268940), (4, 4701705), (5, 3761364), (6, 3134470), (10, 1880682), (12, 1567235), (15, 1253788), (20, 940341), (30, 626894), (60, 313447), (307, 61260), (614, 30630), (921, 20420), (1021, 18420), (1228, 15315), (1535, 12252), (1842, 10210), (2042, 9210), (3063, 6140), (3070, 6126), (3684, 5105), (4084, 4605)]