20522810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2423}}^1$

素因数の和:2459

約数の個数: 48

約数和(自身を含む): 46424448

約数和(自身を除く): 25901638

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 385, 605, 770, 847, 1210, 1694, 2423, 4235, 4846, 8470, 12115, 16961, 24230, 26653, 33922, 53306, 84805, 133265, 169610, 186571, 266530, 293183, 373142, 586366, 932855, 1465915, 1865710, 2052281, 2931830, 4104562, 10261405, 20522810]

約数ペア:

[(1, 20522810), (2, 10261405), (5, 4104562), (7, 2931830), (10, 2052281), (11, 1865710), (14, 1465915), (22, 932855), (35, 586366), (55, 373142), (70, 293183), (77, 266530), (110, 186571), (121, 169610), (154, 133265), (242, 84805), (385, 53306), (605, 33922), (770, 26653), (847, 24230), (1210, 16961), (1694, 12115), (2423, 8470), (4235, 4846)]