256494720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1297}}^1$

素因数の和:1422

約数の個数: 128

約数和(自身を含む): 826151040

約数和(自身を除く): 569656320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 103, 120, 128, 160, 192, 206, 240, 309, 320, 384, 412, 480, 515, 618, 640, 824, 960, 1030, 1236, 1297, 1545, 1648, 1920, 2060, 2472, 2594, 3090, 3296, 3891, 4120, 4944, 5188, 6180, 6485, 6592, 7782, 8240, 9888, 10376, 12360, 12970, 13184, 15564, 16480, 19455, 19776, 20752, 24720, 25940, 31128, 32960, 38910, 39552, 41504, 49440, 51880, 62256, 65920, 77820, 83008, 98880, 103760, 124512, 133591, 155640, 166016, 197760, 207520, 249024, 267182, 311280, 400773, 415040, 498048, 534364, 622560, 667955, 801546, 830080, 1068728, 1245120, 1335910, 1603092, 2003865, 2137456, 2490240, 2671820, 3206184, 4007730, 4274912, 5343640, 6412368, 8015460, 8549824, 10687280, 12824736, 16030920, 17099648, 21374560, 25649472, 32061840, 42749120, 51298944, 64123680, 85498240, 128247360, 256494720]

約数ペア:

[(1, 256494720), (2, 128247360), (3, 85498240), (4, 64123680), (5, 51298944), (6, 42749120), (8, 32061840), (10, 25649472), (12, 21374560), (15, 17099648), (16, 16030920), (20, 12824736), (24, 10687280), (30, 8549824), (32, 8015460), (40, 6412368), (48, 5343640), (60, 4274912), (64, 4007730), (80, 3206184), (96, 2671820), (103, 2490240), (120, 2137456), (128, 2003865), (160, 1603092), (192, 1335910), (206, 1245120), (240, 1068728), (309, 830080), (320, 801546), (384, 667955), (412, 622560), (480, 534364), (515, 498048), (618, 415040), (640, 400773), (824, 311280), (960, 267182), (1030, 249024), (1236, 207520), (1297, 197760), (1545, 166016), (1648, 155640), (1920, 133591), (2060, 124512), (2472, 103760), (2594, 98880), (3090, 83008), (3296, 77820), (3891, 65920), (4120, 62256), (4944, 51880), (5188, 49440), (6180, 41504), (6485, 39552), (6592, 38910), (7782, 32960), (8240, 31128), (9888, 25940), (10376, 24720), (12360, 20752), (12970, 19776), (13184, 19455), (15564, 16480)]