7771820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1291}}^1$

素因数の和:1350

約数の個数: 48

約数和(自身を含む): 19100928

約数和(自身を除く): 11329108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1291, 1505, 2582, 3010, 5164, 6020, 6455, 9037, 12910, 18074, 25820, 36148, 45185, 55513, 90370, 111026, 180740, 222052, 277565, 388591, 555130, 777182, 1110260, 1554364, 1942955, 3885910, 7771820]

約数ペア:

[(1, 7771820), (2, 3885910), (4, 1942955), (5, 1554364), (7, 1110260), (10, 777182), (14, 555130), (20, 388591), (28, 277565), (35, 222052), (43, 180740), (70, 111026), (86, 90370), (140, 55513), (172, 45185), (215, 36148), (301, 25820), (430, 18074), (602, 12910), (860, 9037), (1204, 6455), (1291, 6020), (1505, 5164), (2582, 3010)]