20717224640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9248761}}^1$

素因数の和:9248785

約数の個数: 56

約数和(自身を含む): 56380453152

約数和(自身を除く): 35663228512

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9248761, 18497522, 36995044, 46243805, 64741327, 73990088, 92487610, 129482654, 147980176, 184975220, 258965308, 295960352, 323706635, 369950440, 517930616, 591920704, 647413270, 739900880, 1035861232, 1294826540, 1479801760, 2071722464, 2589653080, 2959603520, 4143444928, 5179306160, 10358612320, 20717224640]

約数ペア:

[(1, 20717224640), (2, 10358612320), (4, 5179306160), (5, 4143444928), (7, 2959603520), (8, 2589653080), (10, 2071722464), (14, 1479801760), (16, 1294826540), (20, 1035861232), (28, 739900880), (32, 647413270), (35, 591920704), (40, 517930616), (56, 369950440), (64, 323706635), (70, 295960352), (80, 258965308), (112, 184975220), (140, 147980176), (160, 129482654), (224, 92487610), (280, 73990088), (320, 64741327), (448, 46243805), (560, 36995044), (1120, 18497522), (2240, 9248761)]