17977960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:491

約数の個数: 128

約数和(自身を含む): 54432000

約数和(自身を除く): 36454040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 449, 455, 520, 572, 616, 715, 728, 770, 898, 910, 1001, 1144, 1430, 1540, 1796, 1820, 2002, 2245, 2860, 3080, 3143, 3592, 3640, 4004, 4490, 4939, 5005, 5720, 5837, 6286, 8008, 8980, 9878, 10010, 11674, 12572, 15715, 17960, 19756, 20020, 23348, 24695, 25144, 29185, 31430, 34573, 39512, 40040, 40859, 46696, 49390, 58370, 62860, 64207, 69146, 81718, 98780, 116740, 125720, 128414, 138292, 163436, 172865, 197560, 204295, 233480, 256828, 276584, 321035, 326872, 345730, 408590, 449449, 513656, 642070, 691460, 817180, 898898, 1284140, 1382920, 1634360, 1797796, 2247245, 2568280, 3595592, 4494490, 8988980, 17977960]

約数ペア:

[(1, 17977960), (2, 8988980), (4, 4494490), (5, 3595592), (7, 2568280), (8, 2247245), (10, 1797796), (11, 1634360), (13, 1382920), (14, 1284140), (20, 898898), (22, 817180), (26, 691460), (28, 642070), (35, 513656), (40, 449449), (44, 408590), (52, 345730), (55, 326872), (56, 321035), (65, 276584), (70, 256828), (77, 233480), (88, 204295), (91, 197560), (104, 172865), (110, 163436), (130, 138292), (140, 128414), (143, 125720), (154, 116740), (182, 98780), (220, 81718), (260, 69146), (280, 64207), (286, 62860), (308, 58370), (364, 49390), (385, 46696), (440, 40859), (449, 40040), (455, 39512), (520, 34573), (572, 31430), (616, 29185), (715, 25144), (728, 24695), (770, 23348), (898, 20020), (910, 19756), (1001, 17960), (1144, 15715), (1430, 12572), (1540, 11674), (1796, 10010), (1820, 9878), (2002, 8980), (2245, 8008), (2860, 6286), (3080, 5837), (3143, 5720), (3592, 5005), (3640, 4939), (4004, 4490)]