639336960

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{27749}}^1$

素因数の和:27778

約数の個数: 120

約数和(自身を含む): 2214283500

約数和(自身を除く): 1574946540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3840, 4608, 5760, 7680, 11520, 23040, 27749, 55498, 83247, 110996, 138745, 166494, 221992, 249741, 277490, 332988, 416235, 443984, 499482, 554980, 665976, 832470, 887968, 998964, 1109960, 1248705, 1331952, 1664940, 1775936, 1997928, 2219920, 2497410, 2663904, 3329880, 3551872, 3995856, 4439840, 4994820, 5327808, 6659760, 7103744, 7991712, 8879680, 9989640, 10655616, 13319520, 14207488, 15983424, 17759360, 19979280, 21311232, 26639040, 31966848, 35518720, 39958560, 42622464, 53278080, 63933696, 71037440, 79917120, 106556160, 127867392, 159834240, 213112320, 319668480, 639336960]

約数ペア:

[(1, 639336960), (2, 319668480), (3, 213112320), (4, 159834240), (5, 127867392), (6, 106556160), (8, 79917120), (9, 71037440), (10, 63933696), (12, 53278080), (15, 42622464), (16, 39958560), (18, 35518720), (20, 31966848), (24, 26639040), (30, 21311232), (32, 19979280), (36, 17759360), (40, 15983424), (45, 14207488), (48, 13319520), (60, 10655616), (64, 9989640), (72, 8879680), (80, 7991712), (90, 7103744), (96, 6659760), (120, 5327808), (128, 4994820), (144, 4439840), (160, 3995856), (180, 3551872), (192, 3329880), (240, 2663904), (256, 2497410), (288, 2219920), (320, 1997928), (360, 1775936), (384, 1664940), (480, 1331952), (512, 1248705), (576, 1109960), (640, 998964), (720, 887968), (768, 832470), (960, 665976), (1152, 554980), (1280, 499482), (1440, 443984), (1536, 416235), (1920, 332988), (2304, 277490), (2560, 249741), (2880, 221992), (3840, 166494), (4608, 138745), (5760, 110996), (7680, 83247), (11520, 55498), (23040, 27749)]