19135720

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1193}}^1$

素因数の和:1605

約数の個数: 32

約数和(自身を含む): 43198920

約数和(自身を除く): 24063200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1193, 1604, 2005, 2386, 3208, 4010, 4772, 5965, 8020, 9544, 11930, 16040, 23860, 47720, 478393, 956786, 1913572, 2391965, 3827144, 4783930, 9567860, 19135720]

約数ペア:

[(1, 19135720), (2, 9567860), (4, 4783930), (5, 3827144), (8, 2391965), (10, 1913572), (20, 956786), (40, 478393), (401, 47720), (802, 23860), (1193, 16040), (1604, 11930), (2005, 9544), (2386, 8020), (3208, 5965), (4010, 4772)]