20090640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{863}}^1$

素因数の和:976

約数の個数: 80

約数和(自身を含む): 62995968

約数和(自身を除く): 42905328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 97, 120, 194, 240, 291, 388, 485, 582, 776, 863, 970, 1164, 1455, 1552, 1726, 1940, 2328, 2589, 2910, 3452, 3880, 4315, 4656, 5178, 5820, 6904, 7760, 8630, 10356, 11640, 12945, 13808, 17260, 20712, 23280, 25890, 34520, 41424, 51780, 69040, 83711, 103560, 167422, 207120, 251133, 334844, 418555, 502266, 669688, 837110, 1004532, 1255665, 1339376, 1674220, 2009064, 2511330, 3348440, 4018128, 5022660, 6696880, 10045320, 20090640]

約数ペア:

[(1, 20090640), (2, 10045320), (3, 6696880), (4, 5022660), (5, 4018128), (6, 3348440), (8, 2511330), (10, 2009064), (12, 1674220), (15, 1339376), (16, 1255665), (20, 1004532), (24, 837110), (30, 669688), (40, 502266), (48, 418555), (60, 334844), (80, 251133), (97, 207120), (120, 167422), (194, 103560), (240, 83711), (291, 69040), (388, 51780), (485, 41424), (582, 34520), (776, 25890), (863, 23280), (970, 20712), (1164, 17260), (1455, 13808), (1552, 12945), (1726, 11640), (1940, 10356), (2328, 8630), (2589, 7760), (2910, 6904), (3452, 5820), (3880, 5178), (4315, 4656)]