289720210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{30529}}^1$

素因数の和:30622

約数の個数: 32

約数和(自身を含む): 569323440

約数和(自身を除く): 279603230

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 4745, 9490, 30529, 61058, 152645, 305290, 396877, 793754, 1984385, 2228617, 3968770, 4457234, 11143085, 22286170, 28972021, 57944042, 144860105, 289720210]

約数ペア:

[(1, 289720210), (2, 144860105), (5, 57944042), (10, 28972021), (13, 22286170), (26, 11143085), (65, 4457234), (73, 3968770), (130, 2228617), (146, 1984385), (365, 793754), (730, 396877), (949, 305290), (1898, 152645), (4745, 61058), (9490, 30529)]