18561680

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3463}}^1$

素因数の和:3543

約数の個数: 40

約数和(自身を含む): 43812672

約数和(自身を除く): 25250992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3463, 5360, 6926, 13852, 17315, 27704, 34630, 55408, 69260, 138520, 232021, 277040, 464042, 928084, 1160105, 1856168, 2320210, 3712336, 4640420, 9280840, 18561680]

約数ペア:

[(1, 18561680), (2, 9280840), (4, 4640420), (5, 3712336), (8, 2320210), (10, 1856168), (16, 1160105), (20, 928084), (40, 464042), (67, 277040), (80, 232021), (134, 138520), (268, 69260), (335, 55408), (536, 34630), (670, 27704), (1072, 17315), (1340, 13852), (2680, 6926), (3463, 5360)]