81019210

素因数分解:

$2^1\times 5^1\times {\mathrm{1889}}^1\times {\mathrm{4289}}^1$

素因数の和:6185

約数の個数: 16

約数和(自身を含む): 145945800

約数和(自身を除く): 64926590

約数列:

[1, 2, 5, 10, 1889, 3778, 4289, 8578, 9445, 18890, 21445, 42890, 8101921, 16203842, 40509605, 81019210]

約数ペア:

[(1, 81019210), (2, 40509605), (5, 16203842), (10, 8101921), (1889, 42890), (3778, 21445), (4289, 18890), (8578, 9445)]