18383940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{937}}^1$

素因数の和:1061

約数の個数: 72

約数和(自身を含む): 56336280

約数和(自身を除く): 37952340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 937, 981, 1090, 1308, 1635, 1874, 1962, 2180, 2811, 3270, 3748, 3924, 4685, 4905, 5622, 6540, 8433, 9370, 9810, 11244, 14055, 16866, 18740, 19620, 28110, 33732, 42165, 56220, 84330, 102133, 168660, 204266, 306399, 408532, 510665, 612798, 919197, 1021330, 1225596, 1531995, 1838394, 2042660, 3063990, 3676788, 4595985, 6127980, 9191970, 18383940]

約数ペア:

[(1, 18383940), (2, 9191970), (3, 6127980), (4, 4595985), (5, 3676788), (6, 3063990), (9, 2042660), (10, 1838394), (12, 1531995), (15, 1225596), (18, 1021330), (20, 919197), (30, 612798), (36, 510665), (45, 408532), (60, 306399), (90, 204266), (109, 168660), (180, 102133), (218, 84330), (327, 56220), (436, 42165), (545, 33732), (654, 28110), (937, 19620), (981, 18740), (1090, 16866), (1308, 14055), (1635, 11244), (1874, 9810), (1962, 9370), (2180, 8433), (2811, 6540), (3270, 5622), (3748, 4905), (3924, 4685)]