128700560

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{15619}}^1$

素因数の和:15735

約数の個数: 40

約数和(自身を含む): 302153280

約数和(自身を除く): 173452720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 15619, 31238, 62476, 78095, 124952, 156190, 249904, 312380, 624760, 1249520, 1608757, 3217514, 6435028, 8043785, 12870056, 16087570, 25740112, 32175140, 64350280, 128700560]

約数ペア:

[(1, 128700560), (2, 64350280), (4, 32175140), (5, 25740112), (8, 16087570), (10, 12870056), (16, 8043785), (20, 6435028), (40, 3217514), (80, 1608757), (103, 1249520), (206, 624760), (412, 312380), (515, 249904), (824, 156190), (1030, 124952), (1648, 78095), (2060, 62476), (4120, 31238), (8240, 15619)]