20512690660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1902847}}^1$

素因数の和:1902881

約数の個数: 72

約数和(自身を含む): 54665017344

約数和(自身を除く): 34152326684

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 1902847, 3805694, 7611388, 9514235, 13319929, 19028470, 20931317, 26639858, 38056940, 41862634, 53279716, 66599645, 83725268, 93239503, 104656585, 133199290, 146519219, 186479006, 209313170, 266398580, 293038438, 372958012, 418626340, 466197515, 586076876, 732596095, 932395030, 1025634533, 1465192190, 1864790060, 2051269066, 2930384380, 4102538132, 5128172665, 10256345330, 20512690660]

約数ペア:

[(1, 20512690660), (2, 10256345330), (4, 5128172665), (5, 4102538132), (7, 2930384380), (10, 2051269066), (11, 1864790060), (14, 1465192190), (20, 1025634533), (22, 932395030), (28, 732596095), (35, 586076876), (44, 466197515), (49, 418626340), (55, 372958012), (70, 293038438), (77, 266398580), (98, 209313170), (110, 186479006), (140, 146519219), (154, 133199290), (196, 104656585), (220, 93239503), (245, 83725268), (308, 66599645), (385, 53279716), (490, 41862634), (539, 38056940), (770, 26639858), (980, 20931317), (1078, 19028470), (1540, 13319929), (2156, 9514235), (2695, 7611388), (5390, 3805694), (10780, 1902847)]