18545580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{523}}^1$

素因数の和:735

約数の個数: 72

約数和(自身を含む): 56648592

約数和(自身を除く): 38103012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 197, 394, 523, 591, 788, 985, 1046, 1182, 1569, 1773, 1970, 2092, 2364, 2615, 2955, 3138, 3546, 3940, 4707, 5230, 5910, 6276, 7092, 7845, 8865, 9414, 10460, 11820, 15690, 17730, 18828, 23535, 31380, 35460, 47070, 94140, 103031, 206062, 309093, 412124, 515155, 618186, 927279, 1030310, 1236372, 1545465, 1854558, 2060620, 3090930, 3709116, 4636395, 6181860, 9272790, 18545580]

約数ペア:

[(1, 18545580), (2, 9272790), (3, 6181860), (4, 4636395), (5, 3709116), (6, 3090930), (9, 2060620), (10, 1854558), (12, 1545465), (15, 1236372), (18, 1030310), (20, 927279), (30, 618186), (36, 515155), (45, 412124), (60, 309093), (90, 206062), (180, 103031), (197, 94140), (394, 47070), (523, 35460), (591, 31380), (788, 23535), (985, 18828), (1046, 17730), (1182, 15690), (1569, 11820), (1773, 10460), (1970, 9414), (2092, 8865), (2364, 7845), (2615, 7092), (2955, 6276), (3138, 5910), (3546, 5230), (3940, 4707)]