165166160

素因数分解:

$2^4\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3191}}^1$

素因数の和:3851

約数の個数: 40

約数和(自身を含む): 384725376

約数和(自身を除く): 219559216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647, 1294, 2588, 3191, 3235, 5176, 6382, 6470, 10352, 12764, 12940, 15955, 25528, 25880, 31910, 51056, 51760, 63820, 127640, 255280, 2064577, 4129154, 8258308, 10322885, 16516616, 20645770, 33033232, 41291540, 82583080, 165166160]

約数ペア:

[(1, 165166160), (2, 82583080), (4, 41291540), (5, 33033232), (8, 20645770), (10, 16516616), (16, 10322885), (20, 8258308), (40, 4129154), (80, 2064577), (647, 255280), (1294, 127640), (2588, 63820), (3191, 51760), (3235, 51056), (5176, 31910), (6382, 25880), (6470, 25528), (10352, 15955), (12764, 12940)]