18913140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{587}}^1$

素因数の和:781

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 38875500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 179, 180, 358, 537, 587, 716, 895, 1074, 1174, 1611, 1761, 1790, 2148, 2348, 2685, 2935, 3222, 3522, 3580, 5283, 5370, 5870, 6444, 7044, 8055, 8805, 10566, 10740, 11740, 16110, 17610, 21132, 26415, 32220, 35220, 52830, 105073, 105660, 210146, 315219, 420292, 525365, 630438, 945657, 1050730, 1260876, 1576095, 1891314, 2101460, 3152190, 3782628, 4728285, 6304380, 9456570, 18913140]

約数ペア:

[(1, 18913140), (2, 9456570), (3, 6304380), (4, 4728285), (5, 3782628), (6, 3152190), (9, 2101460), (10, 1891314), (12, 1576095), (15, 1260876), (18, 1050730), (20, 945657), (30, 630438), (36, 525365), (45, 420292), (60, 315219), (90, 210146), (179, 105660), (180, 105073), (358, 52830), (537, 35220), (587, 32220), (716, 26415), (895, 21132), (1074, 17610), (1174, 16110), (1611, 11740), (1761, 10740), (1790, 10566), (2148, 8805), (2348, 8055), (2685, 7044), (2935, 6444), (3222, 5870), (3522, 5370), (3580, 5283)]