20210340080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{5155699}}^1$

素因数の和:5155726

約数の個数: 60

約数和(自身を含む): 54660731400

約数和(自身を除く): 34450391320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 5155699, 10311398, 20622796, 25778495, 36089893, 41245592, 51556990, 72179786, 82491184, 103113980, 144359572, 180449465, 206227960, 252629251, 288719144, 360898930, 412455920, 505258502, 577438288, 721797860, 1010517004, 1263146255, 1443595720, 2021034008, 2526292510, 2887191440, 4042068016, 5052585020, 10105170040, 20210340080]

約数ペア:

[(1, 20210340080), (2, 10105170040), (4, 5052585020), (5, 4042068016), (7, 2887191440), (8, 2526292510), (10, 2021034008), (14, 1443595720), (16, 1263146255), (20, 1010517004), (28, 721797860), (35, 577438288), (40, 505258502), (49, 412455920), (56, 360898930), (70, 288719144), (80, 252629251), (98, 206227960), (112, 180449465), (140, 144359572), (196, 103113980), (245, 82491184), (280, 72179786), (392, 51556990), (490, 41245592), (560, 36089893), (784, 25778495), (980, 20622796), (1960, 10311398), (3920, 5155699)]