81361140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{631}}^1$

素因数の和:957

約数の個数: 96

約数和(自身を含む): 261617664

約数和(自身を除く): 180256524

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 307, 420, 614, 631, 921, 1228, 1262, 1535, 1842, 1893, 2149, 2524, 3070, 3155, 3684, 3786, 4298, 4417, 4605, 6140, 6310, 6447, 7572, 8596, 8834, 9210, 9465, 10745, 12620, 12894, 13251, 17668, 18420, 18930, 21490, 22085, 25788, 26502, 32235, 37860, 42980, 44170, 53004, 64470, 66255, 88340, 128940, 132510, 193717, 265020, 387434, 581151, 774868, 968585, 1162302, 1356019, 1937170, 2324604, 2712038, 2905755, 3874340, 4068057, 5424076, 5811510, 6780095, 8136114, 11623020, 13560190, 16272228, 20340285, 27120380, 40680570, 81361140]

約数ペア:

[(1, 81361140), (2, 40680570), (3, 27120380), (4, 20340285), (5, 16272228), (6, 13560190), (7, 11623020), (10, 8136114), (12, 6780095), (14, 5811510), (15, 5424076), (20, 4068057), (21, 3874340), (28, 2905755), (30, 2712038), (35, 2324604), (42, 1937170), (60, 1356019), (70, 1162302), (84, 968585), (105, 774868), (140, 581151), (210, 387434), (307, 265020), (420, 193717), (614, 132510), (631, 128940), (921, 88340), (1228, 66255), (1262, 64470), (1535, 53004), (1842, 44170), (1893, 42980), (2149, 37860), (2524, 32235), (3070, 26502), (3155, 25788), (3684, 22085), (3786, 21490), (4298, 18930), (4417, 18420), (4605, 17668), (6140, 13251), (6310, 12894), (6447, 12620), (7572, 10745), (8596, 9465), (8834, 9210)]