256317120

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1459}}^1$

素因数の和:1543

約数の個数: 168

約数和(自身を含む): 896691120

約数和(自身を除く): 640374000

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, 61, 64, 72, 80, 90, 96, 120, 122, 144, 160, 180, 183, 192, 240, 244, 288, 305, 320, 360, 366, 480, 488, 549, 576, 610, 720, 732, 915, 960, 976, 1098, 1220, 1440, 1459, 1464, 1830, 1952, 2196, 2440, 2745, 2880, 2918, 2928, 3660, 3904, 4377, 4392, 4880, 5490, 5836, 5856, 7295, 7320, 8754, 8784, 9760, 10980, 11672, 11712, 13131, 14590, 14640, 17508, 17568, 19520, 21885, 21960, 23344, 26262, 29180, 29280, 35016, 35136, 43770, 43920, 46688, 52524, 58360, 58560, 65655, 70032, 87540, 87840, 88999, 93376, 105048, 116720, 131310, 140064, 175080, 175680, 177998, 210096, 233440, 262620, 266997, 280128, 350160, 355996, 420192, 444995, 466880, 525240, 533994, 700320, 711992, 800991, 840384, 889990, 1050480, 1067988, 1334985, 1400640, 1423984, 1601982, 1779980, 2100960, 2135976, 2669970, 2847968, 3203964, 3559960, 4004955, 4201920, 4271952, 5339940, 5695936, 6407928, 7119920, 8009910, 8543904, 10679880, 12815856, 14239840, 16019820, 17087808, 21359760, 25631712, 28479680, 32039640, 42719520, 51263424, 64079280, 85439040, 128158560, 256317120]

約数ペア:

[(1, 256317120), (2, 128158560), (3, 85439040), (4, 64079280), (5, 51263424), (6, 42719520), (8, 32039640), (9, 28479680), (10, 25631712), (12, 21359760), (15, 17087808), (16, 16019820), (18, 14239840), (20, 12815856), (24, 10679880), (30, 8543904), (32, 8009910), (36, 7119920), (40, 6407928), (45, 5695936), (48, 5339940), (60, 4271952), (61, 4201920), (64, 4004955), (72, 3559960), (80, 3203964), (90, 2847968), (96, 2669970), (120, 2135976), (122, 2100960), (144, 1779980), (160, 1601982), (180, 1423984), (183, 1400640), (192, 1334985), (240, 1067988), (244, 1050480), (288, 889990), (305, 840384), (320, 800991), (360, 711992), (366, 700320), (480, 533994), (488, 525240), (549, 466880), (576, 444995), (610, 420192), (720, 355996), (732, 350160), (915, 280128), (960, 266997), (976, 262620), (1098, 233440), (1220, 210096), (1440, 177998), (1459, 175680), (1464, 175080), (1830, 140064), (1952, 131310), (2196, 116720), (2440, 105048), (2745, 93376), (2880, 88999), (2918, 87840), (2928, 87540), (3660, 70032), (3904, 65655), (4377, 58560), (4392, 58360), (4880, 52524), (5490, 46688), (5836, 43920), (5856, 43770), (7295, 35136), (7320, 35016), (8754, 29280), (8784, 29180), (9760, 26262), (10980, 23344), (11672, 21960), (11712, 21885), (13131, 19520), (14590, 17568), (14640, 17508)]