9880420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{463}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 22917888

約数和(自身を除く): 13037468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 463, 485, 926, 970, 1067, 1852, 1940, 2134, 2315, 4268, 4630, 5093, 5335, 9260, 10186, 10670, 20372, 21340, 25465, 44911, 50930, 89822, 101860, 179644, 224555, 449110, 494021, 898220, 988042, 1976084, 2470105, 4940210, 9880420]

約数ペア:

[(1, 9880420), (2, 4940210), (4, 2470105), (5, 1976084), (10, 988042), (11, 898220), (20, 494021), (22, 449110), (44, 224555), (55, 179644), (97, 101860), (110, 89822), (194, 50930), (220, 44911), (388, 25465), (463, 21340), (485, 20372), (926, 10670), (970, 10186), (1067, 9260), (1852, 5335), (1940, 5093), (2134, 4630), (2315, 4268)]