128145840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1049}}^1$

素因数の和:1574

約数の個数: 80

約数和(自身を含む): 398412000

約数和(自身を除く): 270266160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 509, 1018, 1049, 1527, 2036, 2098, 2545, 3054, 3147, 4072, 4196, 5090, 5245, 6108, 6294, 7635, 8144, 8392, 10180, 10490, 12216, 12588, 15270, 15735, 16784, 20360, 20980, 24432, 25176, 30540, 31470, 40720, 41960, 50352, 61080, 62940, 83920, 122160, 125880, 251760, 533941, 1067882, 1601823, 2135764, 2669705, 3203646, 4271528, 5339410, 6407292, 8009115, 8543056, 10678820, 12814584, 16018230, 21357640, 25629168, 32036460, 42715280, 64072920, 128145840]

約数ペア:

[(1, 128145840), (2, 64072920), (3, 42715280), (4, 32036460), (5, 25629168), (6, 21357640), (8, 16018230), (10, 12814584), (12, 10678820), (15, 8543056), (16, 8009115), (20, 6407292), (24, 5339410), (30, 4271528), (40, 3203646), (48, 2669705), (60, 2135764), (80, 1601823), (120, 1067882), (240, 533941), (509, 251760), (1018, 125880), (1049, 122160), (1527, 83920), (2036, 62940), (2098, 61080), (2545, 50352), (3054, 41960), (3147, 40720), (4072, 31470), (4196, 30540), (5090, 25176), (5245, 24432), (6108, 20980), (6294, 20360), (7635, 16784), (8144, 15735), (8392, 15270), (10180, 12588), (10490, 12216)]