19902810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2161}}^1$

素因数の和:2478

約数の個数: 32

約数和(自身を含む): 47944512

約数和(自身を除く): 28041702

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 307, 614, 921, 1535, 1842, 2161, 3070, 4322, 4605, 6483, 9210, 10805, 12966, 21610, 32415, 64830, 663427, 1326854, 1990281, 3317135, 3980562, 6634270, 9951405, 19902810]

約数ペア:

[(1, 19902810), (2, 9951405), (3, 6634270), (5, 3980562), (6, 3317135), (10, 1990281), (15, 1326854), (30, 663427), (307, 64830), (614, 32415), (921, 21610), (1535, 12966), (1842, 10805), (2161, 9210), (3070, 6483), (4322, 4605)]