128154560

素因数分解:

$2^6\times 5^1\times {\mathrm{557}}^1\times {\mathrm{719}}^1$

素因数の和:1293

約数の個数: 56

約数和(自身を含む): 306141120

約数和(自身を除く): 177986560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 557, 719, 1114, 1438, 2228, 2785, 2876, 3595, 4456, 5570, 5752, 7190, 8912, 11140, 11504, 14380, 17824, 22280, 23008, 28760, 35648, 44560, 46016, 57520, 89120, 115040, 178240, 230080, 400483, 800966, 1601932, 2002415, 3203864, 4004830, 6407728, 8009660, 12815456, 16019320, 25630912, 32038640, 64077280, 128154560]

約数ペア:

[(1, 128154560), (2, 64077280), (4, 32038640), (5, 25630912), (8, 16019320), (10, 12815456), (16, 8009660), (20, 6407728), (32, 4004830), (40, 3203864), (64, 2002415), (80, 1601932), (160, 800966), (320, 400483), (557, 230080), (719, 178240), (1114, 115040), (1438, 89120), (2228, 57520), (2785, 46016), (2876, 44560), (3595, 35648), (4456, 28760), (5570, 23008), (5752, 22280), (7190, 17824), (8912, 14380), (11140, 11504)]