281995140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{671417}}^1$

素因数の和:671436

約数の個数: 48

約数和(自身を含む): 902385792

約数和(自身を除く): 620390652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 671417, 1342834, 2014251, 2685668, 3357085, 4028502, 4699919, 6714170, 8057004, 9399838, 10071255, 13428340, 14099757, 18799676, 20142510, 23499595, 28199514, 40285020, 46999190, 56399028, 70498785, 93998380, 140997570, 281995140]

約数ペア:

[(1, 281995140), (2, 140997570), (3, 93998380), (4, 70498785), (5, 56399028), (6, 46999190), (7, 40285020), (10, 28199514), (12, 23499595), (14, 20142510), (15, 18799676), (20, 14099757), (21, 13428340), (28, 10071255), (30, 9399838), (35, 8057004), (42, 6714170), (60, 4699919), (70, 4028502), (84, 3357085), (105, 2685668), (140, 2014251), (210, 1342834), (420, 671417)]