55229840

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7757}}^1$

素因数の和:7859

約数の個数: 40

約数和(自身を含む): 129868920

約数和(自身を除く): 74639080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 7757, 15514, 31028, 38785, 62056, 77570, 124112, 155140, 310280, 620560, 690373, 1380746, 2761492, 3451865, 5522984, 6903730, 11045968, 13807460, 27614920, 55229840]

約数ペア:

[(1, 55229840), (2, 27614920), (4, 13807460), (5, 11045968), (8, 6903730), (10, 5522984), (16, 3451865), (20, 2761492), (40, 1380746), (80, 690373), (89, 620560), (178, 310280), (356, 155140), (445, 124112), (712, 77570), (890, 62056), (1424, 38785), (1780, 31028), (3560, 15514), (7120, 7757)]