31516740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{563}}^1$

素因数の和:889

約数の個数: 72

約数和(自身を含む): 96078528

約数和(自身を除く): 64561788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 563, 622, 933, 1126, 1244, 1555, 1689, 1866, 2252, 2799, 2815, 3110, 3378, 3732, 4665, 5067, 5598, 5630, 6220, 6756, 8445, 9330, 10134, 11196, 11260, 13995, 16890, 18660, 20268, 25335, 27990, 33780, 50670, 55980, 101340, 175093, 350186, 525279, 700372, 875465, 1050558, 1575837, 1750930, 2101116, 2626395, 3151674, 3501860, 5252790, 6303348, 7879185, 10505580, 15758370, 31516740]

約数ペア:

[(1, 31516740), (2, 15758370), (3, 10505580), (4, 7879185), (5, 6303348), (6, 5252790), (9, 3501860), (10, 3151674), (12, 2626395), (15, 2101116), (18, 1750930), (20, 1575837), (30, 1050558), (36, 875465), (45, 700372), (60, 525279), (90, 350186), (180, 175093), (311, 101340), (563, 55980), (622, 50670), (933, 33780), (1126, 27990), (1244, 25335), (1555, 20268), (1689, 18660), (1866, 16890), (2252, 13995), (2799, 11260), (2815, 11196), (3110, 10134), (3378, 9330), (3732, 8445), (4665, 6756), (5067, 6220), (5598, 5630)]