200017980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1111211}}^1$

素因数の和:1111226

約数の個数: 36

約数和(自身を含む): 606721752

約数和(自身を除く): 406703772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1111211, 2222422, 3333633, 4444844, 5556055, 6667266, 10000899, 11112110, 13334532, 16668165, 20001798, 22224220, 33336330, 40003596, 50004495, 66672660, 100008990, 200017980]

約数ペア:

[(1, 200017980), (2, 100008990), (3, 66672660), (4, 50004495), (5, 40003596), (6, 33336330), (9, 22224220), (10, 20001798), (12, 16668165), (15, 13334532), (18, 11112110), (20, 10000899), (30, 6667266), (36, 5556055), (45, 4444844), (60, 3333633), (90, 2222422), (180, 1111211)]