68864980

素因数分解:

$2^2\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{3221}}^1$

素因数の和:4299

約数の個数: 24

約数和(自身を含む): 144796680

約数和(自身を除く): 75931700

約数列:

[1, 2, 4, 5, 10, 20, 1069, 2138, 3221, 4276, 5345, 6442, 10690, 12884, 16105, 21380, 32210, 64420, 3443249, 6886498, 13772996, 17216245, 34432490, 68864980]

約数ペア:

[(1, 68864980), (2, 34432490), (4, 17216245), (5, 13772996), (10, 6886498), (20, 3443249), (1069, 64420), (2138, 32210), (3221, 21380), (4276, 16105), (5345, 12884), (6442, 10690)]