19018380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1609}}^1$

素因数の和:1818

約数の個数: 48

約数和(自身を含む): 53555040

約数和(自身を除く): 34536660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 788, 985, 1182, 1609, 1970, 2364, 2955, 3218, 3940, 4827, 5910, 6436, 8045, 9654, 11820, 16090, 19308, 24135, 32180, 48270, 96540, 316973, 633946, 950919, 1267892, 1584865, 1901838, 3169730, 3803676, 4754595, 6339460, 9509190, 19018380]

約数ペア:

[(1, 19018380), (2, 9509190), (3, 6339460), (4, 4754595), (5, 3803676), (6, 3169730), (10, 1901838), (12, 1584865), (15, 1267892), (20, 950919), (30, 633946), (60, 316973), (197, 96540), (394, 48270), (591, 32180), (788, 24135), (985, 19308), (1182, 16090), (1609, 11820), (1970, 9654), (2364, 8045), (2955, 6436), (3218, 5910), (3940, 4827)]