20171939720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{919}}^1\times {\mathrm{14831}}^1$

素因数の和:15798

約数の個数: 64

約数和(自身を含む): 46667404800

約数和(自身を除く): 26495465080

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 919, 1480, 1838, 3676, 4595, 7352, 9190, 14831, 18380, 29662, 34003, 36760, 59324, 68006, 74155, 118648, 136012, 148310, 170015, 272024, 296620, 340030, 548747, 593240, 680060, 1097494, 1360120, 2194988, 2743735, 4389976, 5487470, 10974940, 13629689, 21949880, 27259378, 54518756, 68148445, 109037512, 136296890, 272593780, 504298493, 545187560, 1008596986, 2017193972, 2521492465, 4034387944, 5042984930, 10085969860, 20171939720]

約数ペア:

[(1, 20171939720), (2, 10085969860), (4, 5042984930), (5, 4034387944), (8, 2521492465), (10, 2017193972), (20, 1008596986), (37, 545187560), (40, 504298493), (74, 272593780), (148, 136296890), (185, 109037512), (296, 68148445), (370, 54518756), (740, 27259378), (919, 21949880), (1480, 13629689), (1838, 10974940), (3676, 5487470), (4595, 4389976), (7352, 2743735), (9190, 2194988), (14831, 1360120), (18380, 1097494), (29662, 680060), (34003, 593240), (36760, 548747), (59324, 340030), (68006, 296620), (74155, 272024), (118648, 170015), (136012, 148310)]