320835840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6427}}^1$

素因数の和:6464

約数の個数: 144

約数和(自身を含む): 1103661888

約数和(自身を除く): 782826048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 768, 780, 832, 960, 1040, 1248, 1280, 1560, 1664, 1920, 2080, 2496, 3120, 3328, 3840, 4160, 4992, 6240, 6427, 8320, 9984, 12480, 12854, 16640, 19281, 24960, 25708, 32135, 38562, 49920, 51416, 64270, 77124, 83551, 96405, 102832, 128540, 154248, 167102, 192810, 205664, 250653, 257080, 308496, 334204, 385620, 411328, 417755, 501306, 514160, 616992, 668408, 771240, 822656, 835510, 1002612, 1028320, 1233984, 1253265, 1336816, 1542480, 1645312, 1671020, 2005224, 2056640, 2467968, 2506530, 2673632, 3084960, 3342040, 4010448, 4113280, 4935936, 5013060, 5347264, 6169920, 6684080, 8020896, 8226560, 10026120, 10694528, 12339840, 13368160, 16041792, 20052240, 21389056, 24679680, 26736320, 32083584, 40104480, 53472640, 64167168, 80208960, 106945280, 160417920, 320835840]

約数ペア:

[(1, 320835840), (2, 160417920), (3, 106945280), (4, 80208960), (5, 64167168), (6, 53472640), (8, 40104480), (10, 32083584), (12, 26736320), (13, 24679680), (15, 21389056), (16, 20052240), (20, 16041792), (24, 13368160), (26, 12339840), (30, 10694528), (32, 10026120), (39, 8226560), (40, 8020896), (48, 6684080), (52, 6169920), (60, 5347264), (64, 5013060), (65, 4935936), (78, 4113280), (80, 4010448), (96, 3342040), (104, 3084960), (120, 2673632), (128, 2506530), (130, 2467968), (156, 2056640), (160, 2005224), (192, 1671020), (195, 1645312), (208, 1542480), (240, 1336816), (256, 1253265), (260, 1233984), (312, 1028320), (320, 1002612), (384, 835510), (390, 822656), (416, 771240), (480, 668408), (520, 616992), (624, 514160), (640, 501306), (768, 417755), (780, 411328), (832, 385620), (960, 334204), (1040, 308496), (1248, 257080), (1280, 250653), (1560, 205664), (1664, 192810), (1920, 167102), (2080, 154248), (2496, 128540), (3120, 102832), (3328, 96405), (3840, 83551), (4160, 77124), (4992, 64270), (6240, 51416), (6427, 49920), (8320, 38562), (9984, 32135), (12480, 25708), (12854, 24960), (16640, 19281)]