1239680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 3213000

約数和(自身を除く): 1973320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 149, 160, 208, 260, 298, 320, 416, 520, 596, 640, 745, 832, 1040, 1192, 1490, 1664, 1937, 2080, 2384, 2980, 3874, 4160, 4768, 5960, 7748, 8320, 9536, 9685, 11920, 15496, 19072, 19370, 23840, 30992, 38740, 47680, 61984, 77480, 95360, 123968, 154960, 247936, 309920, 619840, 1239680]

約数ペア:

[(1, 1239680), (2, 619840), (4, 309920), (5, 247936), (8, 154960), (10, 123968), (13, 95360), (16, 77480), (20, 61984), (26, 47680), (32, 38740), (40, 30992), (52, 23840), (64, 19370), (65, 19072), (80, 15496), (104, 11920), (128, 9685), (130, 9536), (149, 8320), (160, 7748), (208, 5960), (260, 4768), (298, 4160), (320, 3874), (416, 2980), (520, 2384), (596, 2080), (640, 1937), (745, 1664), (832, 1490), (1040, 1192)]