256009920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{266677}}^1$

素因数の和:266697

約数の個数: 56

約数和(自身を含む): 812834544

約数和(自身を除く): 556824624

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 266677, 533354, 800031, 1066708, 1333385, 1600062, 2133416, 2666770, 3200124, 4000155, 4266832, 5333540, 6400248, 8000310, 8533664, 10667080, 12800496, 16000620, 17067328, 21334160, 25600992, 32001240, 42668320, 51201984, 64002480, 85336640, 128004960, 256009920]

約数ペア:

[(1, 256009920), (2, 128004960), (3, 85336640), (4, 64002480), (5, 51201984), (6, 42668320), (8, 32001240), (10, 25600992), (12, 21334160), (15, 17067328), (16, 16000620), (20, 12800496), (24, 10667080), (30, 8533664), (32, 8000310), (40, 6400248), (48, 5333540), (60, 4266832), (64, 4000155), (80, 3200124), (96, 2666770), (120, 2133416), (160, 1600062), (192, 1333385), (240, 1066708), (320, 800031), (480, 533354), (960, 266677)]