18561340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{673}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 44839872

約数和(自身を除く): 26278532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 673, 788, 985, 1346, 1379, 1970, 2692, 2758, 3365, 3940, 4711, 5516, 6730, 6895, 9422, 13460, 13790, 18844, 23555, 27580, 47110, 94220, 132581, 265162, 530324, 662905, 928067, 1325810, 1856134, 2651620, 3712268, 4640335, 9280670, 18561340]

約数ペア:

[(1, 18561340), (2, 9280670), (4, 4640335), (5, 3712268), (7, 2651620), (10, 1856134), (14, 1325810), (20, 928067), (28, 662905), (35, 530324), (70, 265162), (140, 132581), (197, 94220), (394, 47110), (673, 27580), (788, 23555), (985, 18844), (1346, 13790), (1379, 13460), (1970, 9422), (2692, 6895), (2758, 6730), (3365, 5516), (3940, 4711)]