2021490590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{67631}}^1$

素因数の和:67713

約数の個数: 48

約数和(自身を含む): 4302206784

約数和(自身を除く): 2280716194

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 610, 854, 2135, 2989, 4270, 5978, 14945, 29890, 67631, 135262, 338155, 473417, 676310, 946834, 2367085, 3313919, 4125491, 4734170, 6627838, 8250982, 16569595, 20627455, 28878437, 33139190, 41254910, 57756874, 144392185, 202149059, 288784370, 404298118, 1010745295, 2021490590]

約数ペア:

[(1, 2021490590), (2, 1010745295), (5, 404298118), (7, 288784370), (10, 202149059), (14, 144392185), (35, 57756874), (49, 41254910), (61, 33139190), (70, 28878437), (98, 20627455), (122, 16569595), (245, 8250982), (305, 6627838), (427, 4734170), (490, 4125491), (610, 3313919), (854, 2367085), (2135, 946834), (2989, 676310), (4270, 473417), (5978, 338155), (14945, 135262), (29890, 67631)]