2021781545

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{2557}}^1$

素因数の和:2658

約数の個数: 64

約数和(自身を含む): 3094156800

約数和(自身を除く): 1072375255

約数列:

[1, 5, 7, 19, 29, 35, 41, 95, 133, 145, 203, 205, 287, 551, 665, 779, 1015, 1189, 1435, 2557, 2755, 3857, 3895, 5453, 5945, 8323, 12785, 17899, 19285, 22591, 27265, 41615, 48583, 74153, 89495, 104837, 112955, 158137, 242915, 340081, 370765, 519071, 524185, 733859, 790685, 1408907, 1700405, 1991903, 2595355, 3040273, 3669295, 7044535, 9862349, 9959515, 13943321, 15201365, 21281911, 49311745, 57765187, 69716605, 106409555, 288825935, 404356309, 2021781545]

約数ペア:

[(1, 2021781545), (5, 404356309), (7, 288825935), (19, 106409555), (29, 69716605), (35, 57765187), (41, 49311745), (95, 21281911), (133, 15201365), (145, 13943321), (203, 9959515), (205, 9862349), (287, 7044535), (551, 3669295), (665, 3040273), (779, 2595355), (1015, 1991903), (1189, 1700405), (1435, 1408907), (2557, 790685), (2755, 733859), (3857, 524185), (3895, 519071), (5453, 370765), (5945, 340081), (8323, 242915), (12785, 158137), (17899, 112955), (19285, 104837), (22591, 89495), (27265, 74153), (41615, 48583)]