788558120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20261}}^1$

素因数の和:20418

約数の個数: 64

約数和(自身を含む): 2042409600

約数和(自身を除く): 1253851480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2780, 3892, 4865, 5560, 7784, 9730, 19460, 20261, 38920, 40522, 81044, 101305, 141827, 162088, 202610, 283654, 405220, 567308, 709135, 810440, 1134616, 1418270, 2816279, 2836540, 5632558, 5673080, 11265116, 14081395, 19713953, 22530232, 28162790, 39427906, 56325580, 78855812, 98569765, 112651160, 157711624, 197139530, 394279060, 788558120]

約数ペア:

[(1, 788558120), (2, 394279060), (4, 197139530), (5, 157711624), (7, 112651160), (8, 98569765), (10, 78855812), (14, 56325580), (20, 39427906), (28, 28162790), (35, 22530232), (40, 19713953), (56, 14081395), (70, 11265116), (139, 5673080), (140, 5632558), (278, 2836540), (280, 2816279), (556, 1418270), (695, 1134616), (973, 810440), (1112, 709135), (1390, 567308), (1946, 405220), (2780, 283654), (3892, 202610), (4865, 162088), (5560, 141827), (7784, 101305), (9730, 81044), (19460, 40522), (20261, 38920)]