20040945440

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{986267}}^1$

素因数の和:986409

約数の個数: 48

約数和(自身を含む): 47719590912

約数和(自身を除く): 27678645472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 10160, 20320, 986267, 1972534, 3945068, 4931335, 7890136, 9862670, 15780272, 19725340, 31560544, 39450680, 78901360, 125255909, 157802720, 250511818, 501023636, 626279545, 1002047272, 1252559090, 2004094544, 2505118180, 4008189088, 5010236360, 10020472720, 20040945440]

約数ペア:

[(1, 20040945440), (2, 10020472720), (4, 5010236360), (5, 4008189088), (8, 2505118180), (10, 2004094544), (16, 1252559090), (20, 1002047272), (32, 626279545), (40, 501023636), (80, 250511818), (127, 157802720), (160, 125255909), (254, 78901360), (508, 39450680), (635, 31560544), (1016, 19725340), (1270, 15780272), (2032, 9862670), (2540, 7890136), (4064, 4931335), (5080, 3945068), (10160, 1972534), (20320, 986267)]