827912820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^5\times {\mathrm{821}}^1$

素因数の和:868

約数の個数: 144

約数和(自身を含む): 2707786368

約数和(自身を除く): 1879873548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 821, 980, 1029, 1372, 1470, 1642, 1715, 2058, 2401, 2463, 2940, 3284, 3430, 4105, 4116, 4802, 4926, 5145, 5747, 6860, 7203, 8210, 9604, 9852, 10290, 11494, 12005, 12315, 14406, 16420, 16807, 17241, 20580, 22988, 24010, 24630, 28735, 28812, 33614, 34482, 36015, 40229, 48020, 49260, 50421, 57470, 67228, 68964, 72030, 80458, 84035, 86205, 100842, 114940, 120687, 144060, 160916, 168070, 172410, 201145, 201684, 241374, 252105, 281603, 336140, 344820, 402290, 482748, 504210, 563206, 603435, 804580, 844809, 1008420, 1126412, 1206870, 1408015, 1689618, 1971221, 2413740, 2816030, 3379236, 3942442, 4224045, 5632060, 5913663, 7884884, 8448090, 9856105, 11827326, 13798547, 16896180, 19712210, 23654652, 27597094, 29568315, 39424420, 41395641, 55194188, 59136630, 68992735, 82791282, 118273260, 137985470, 165582564, 206978205, 275970940, 413956410, 827912820]

約数ペア:

[(1, 827912820), (2, 413956410), (3, 275970940), (4, 206978205), (5, 165582564), (6, 137985470), (7, 118273260), (10, 82791282), (12, 68992735), (14, 59136630), (15, 55194188), (20, 41395641), (21, 39424420), (28, 29568315), (30, 27597094), (35, 23654652), (42, 19712210), (49, 16896180), (60, 13798547), (70, 11827326), (84, 9856105), (98, 8448090), (105, 7884884), (140, 5913663), (147, 5632060), (196, 4224045), (210, 3942442), (245, 3379236), (294, 2816030), (343, 2413740), (420, 1971221), (490, 1689618), (588, 1408015), (686, 1206870), (735, 1126412), (821, 1008420), (980, 844809), (1029, 804580), (1372, 603435), (1470, 563206), (1642, 504210), (1715, 482748), (2058, 402290), (2401, 344820), (2463, 336140), (2940, 281603), (3284, 252105), (3430, 241374), (4105, 201684), (4116, 201145), (4802, 172410), (4926, 168070), (5145, 160916), (5747, 144060), (6860, 120687), (7203, 114940), (8210, 100842), (9604, 86205), (9852, 84035), (10290, 80458), (11494, 72030), (12005, 68964), (12315, 67228), (14406, 57470), (16420, 50421), (16807, 49260), (17241, 48020), (20580, 40229), (22988, 36015), (24010, 34482), (24630, 33614), (28735, 28812)]