81540396

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1451}}^1$

素因数の和:1691

約数の個数: 72

約数和(自身を含む): 236780544

約数和(自身を除く): 155240148

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 223, 252, 446, 669, 892, 1338, 1451, 1561, 2007, 2676, 2902, 3122, 4014, 4353, 4683, 5804, 6244, 8028, 8706, 9366, 10157, 13059, 14049, 17412, 18732, 20314, 26118, 28098, 30471, 40628, 52236, 56196, 60942, 91413, 121884, 182826, 323573, 365652, 647146, 970719, 1294292, 1941438, 2265011, 2912157, 3882876, 4530022, 5824314, 6795033, 9060044, 11648628, 13590066, 20385099, 27180132, 40770198, 81540396]

約数ペア:

[(1, 81540396), (2, 40770198), (3, 27180132), (4, 20385099), (6, 13590066), (7, 11648628), (9, 9060044), (12, 6795033), (14, 5824314), (18, 4530022), (21, 3882876), (28, 2912157), (36, 2265011), (42, 1941438), (63, 1294292), (84, 970719), (126, 647146), (223, 365652), (252, 323573), (446, 182826), (669, 121884), (892, 91413), (1338, 60942), (1451, 56196), (1561, 52236), (2007, 40628), (2676, 30471), (2902, 28098), (3122, 26118), (4014, 20314), (4353, 18732), (4683, 17412), (5804, 14049), (6244, 13059), (8028, 10157), (8706, 9366)]