81463440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1723}}^1$

素因数の和:1936

約数の個数: 80

約数和(自身を含む): 253965888

約数和(自身を除く): 172502448

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 197, 240, 394, 591, 788, 985, 1182, 1576, 1723, 1970, 2364, 2955, 3152, 3446, 3940, 4728, 5169, 5910, 6892, 7880, 8615, 9456, 10338, 11820, 13784, 15760, 17230, 20676, 23640, 25845, 27568, 34460, 41352, 47280, 51690, 68920, 82704, 103380, 137840, 206760, 339431, 413520, 678862, 1018293, 1357724, 1697155, 2036586, 2715448, 3394310, 4073172, 5091465, 5430896, 6788620, 8146344, 10182930, 13577240, 16292688, 20365860, 27154480, 40731720, 81463440]

約数ペア:

[(1, 81463440), (2, 40731720), (3, 27154480), (4, 20365860), (5, 16292688), (6, 13577240), (8, 10182930), (10, 8146344), (12, 6788620), (15, 5430896), (16, 5091465), (20, 4073172), (24, 3394310), (30, 2715448), (40, 2036586), (48, 1697155), (60, 1357724), (80, 1018293), (120, 678862), (197, 413520), (240, 339431), (394, 206760), (591, 137840), (788, 103380), (985, 82704), (1182, 68920), (1576, 51690), (1723, 47280), (1970, 41352), (2364, 34460), (2955, 27568), (3152, 25845), (3446, 23640), (3940, 20676), (4728, 17230), (5169, 15760), (5910, 13784), (6892, 11820), (7880, 10338), (8615, 9456)]