9905980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{409}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 23970240

約数和(自身を除く): 14064260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 173, 346, 409, 692, 818, 865, 1211, 1636, 1730, 2045, 2422, 2863, 3460, 4090, 4844, 5726, 6055, 8180, 11452, 12110, 14315, 24220, 28630, 57260, 70757, 141514, 283028, 353785, 495299, 707570, 990598, 1415140, 1981196, 2476495, 4952990, 9905980]

約数ペア:

[(1, 9905980), (2, 4952990), (4, 2476495), (5, 1981196), (7, 1415140), (10, 990598), (14, 707570), (20, 495299), (28, 353785), (35, 283028), (70, 141514), (140, 70757), (173, 57260), (346, 28630), (409, 24220), (692, 14315), (818, 12110), (865, 11452), (1211, 8180), (1636, 6055), (1730, 5726), (2045, 4844), (2422, 4090), (2863, 3460)]