406977980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{1439}}^1$

素因数の和:1706

約数の個数: 48

約数和(自身を含む): 870912000

約数和(自身を除く): 463934020

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 179, 316, 358, 395, 716, 790, 895, 1439, 1580, 1790, 2878, 3580, 5756, 7195, 14141, 14390, 28282, 28780, 56564, 70705, 113681, 141410, 227362, 257581, 282820, 454724, 515162, 568405, 1030324, 1136810, 1287905, 2273620, 2575810, 5151620, 20348899, 40697798, 81395596, 101744495, 203488990, 406977980]

約数ペア:

[(1, 406977980), (2, 203488990), (4, 101744495), (5, 81395596), (10, 40697798), (20, 20348899), (79, 5151620), (158, 2575810), (179, 2273620), (316, 1287905), (358, 1136810), (395, 1030324), (716, 568405), (790, 515162), (895, 454724), (1439, 282820), (1580, 257581), (1790, 227362), (2878, 141410), (3580, 113681), (5756, 70705), (7195, 56564), (14141, 28780), (14390, 28282)]