128481520

素因数分解:

$2^4\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{1531}}^1$

素因数の和:2593

約数の個数: 40

約数和(自身を含む): 299199600

約数和(自身を除く): 170718080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1049, 1531, 2098, 3062, 4196, 5245, 6124, 7655, 8392, 10490, 12248, 15310, 16784, 20980, 24496, 30620, 41960, 61240, 83920, 122480, 1606019, 3212038, 6424076, 8030095, 12848152, 16060190, 25696304, 32120380, 64240760, 128481520]

約数ペア:

[(1, 128481520), (2, 64240760), (4, 32120380), (5, 25696304), (8, 16060190), (10, 12848152), (16, 8030095), (20, 6424076), (40, 3212038), (80, 1606019), (1049, 122480), (1531, 83920), (2098, 61240), (3062, 41960), (4196, 30620), (5245, 24496), (6124, 20980), (7655, 16784), (8392, 15310), (10490, 12248)]