654481920

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2749}}^1$

素因数の和:2806

約数の個数: 160

約数和(自身を含む): 2160576000

約数和(自身を除く): 1506094080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 512, 620, 640, 744, 768, 930, 960, 992, 1240, 1280, 1488, 1536, 1860, 1920, 1984, 2480, 2560, 2749, 2976, 3720, 3840, 3968, 4960, 5498, 5952, 7440, 7680, 7936, 8247, 9920, 10996, 11904, 13745, 14880, 15872, 16494, 19840, 21992, 23808, 27490, 29760, 32988, 39680, 41235, 43984, 47616, 54980, 59520, 65976, 79360, 82470, 85219, 87968, 109960, 119040, 131952, 164940, 170438, 175936, 219920, 238080, 255657, 263904, 329880, 340876, 351872, 426095, 439840, 511314, 527808, 659760, 681752, 703744, 852190, 879680, 1022628, 1055616, 1278285, 1319520, 1363504, 1407488, 1704380, 1759360, 2045256, 2111232, 2556570, 2639040, 2727008, 3408760, 3518720, 4090512, 4222464, 5113140, 5278080, 5454016, 6817520, 7037440, 8181024, 10226280, 10556160, 10908032, 13635040, 16362048, 20452560, 21112320, 21816064, 27270080, 32724096, 40905120, 43632128, 54540160, 65448192, 81810240, 109080320, 130896384, 163620480, 218160640, 327240960, 654481920]

約数ペア:

[(1, 654481920), (2, 327240960), (3, 218160640), (4, 163620480), (5, 130896384), (6, 109080320), (8, 81810240), (10, 65448192), (12, 54540160), (15, 43632128), (16, 40905120), (20, 32724096), (24, 27270080), (30, 21816064), (31, 21112320), (32, 20452560), (40, 16362048), (48, 13635040), (60, 10908032), (62, 10556160), (64, 10226280), (80, 8181024), (93, 7037440), (96, 6817520), (120, 5454016), (124, 5278080), (128, 5113140), (155, 4222464), (160, 4090512), (186, 3518720), (192, 3408760), (240, 2727008), (248, 2639040), (256, 2556570), (310, 2111232), (320, 2045256), (372, 1759360), (384, 1704380), (465, 1407488), (480, 1363504), (496, 1319520), (512, 1278285), (620, 1055616), (640, 1022628), (744, 879680), (768, 852190), (930, 703744), (960, 681752), (992, 659760), (1240, 527808), (1280, 511314), (1488, 439840), (1536, 426095), (1860, 351872), (1920, 340876), (1984, 329880), (2480, 263904), (2560, 255657), (2749, 238080), (2976, 219920), (3720, 175936), (3840, 170438), (3968, 164940), (4960, 131952), (5498, 119040), (5952, 109960), (7440, 87968), (7680, 85219), (7936, 82470), (8247, 79360), (9920, 65976), (10996, 59520), (11904, 54980), (13745, 47616), (14880, 43984), (15872, 41235), (16494, 39680), (19840, 32988), (21992, 29760), (23808, 27490)]