204510780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2333}}^1$

素因数の和:2835

約数の個数: 72

約数和(自身を含む): 621889632

約数和(自身を除く): 417378852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 487, 974, 1461, 1948, 2333, 2435, 2922, 4383, 4666, 4870, 5844, 6999, 7305, 8766, 9332, 9740, 11665, 13998, 14610, 17532, 20997, 21915, 23330, 27996, 29220, 34995, 41994, 43830, 46660, 69990, 83988, 87660, 104985, 139980, 209970, 419940, 1136171, 2272342, 3408513, 4544684, 5680855, 6817026, 10225539, 11361710, 13634052, 17042565, 20451078, 22723420, 34085130, 40902156, 51127695, 68170260, 102255390, 204510780]

約数ペア:

[(1, 204510780), (2, 102255390), (3, 68170260), (4, 51127695), (5, 40902156), (6, 34085130), (9, 22723420), (10, 20451078), (12, 17042565), (15, 13634052), (18, 11361710), (20, 10225539), (30, 6817026), (36, 5680855), (45, 4544684), (60, 3408513), (90, 2272342), (180, 1136171), (487, 419940), (974, 209970), (1461, 139980), (1948, 104985), (2333, 87660), (2435, 83988), (2922, 69990), (4383, 46660), (4666, 43830), (4870, 41994), (5844, 34995), (6999, 29220), (7305, 27996), (8766, 23330), (9332, 21915), (9740, 20997), (11665, 17532), (13998, 14610)]