31878756

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 102246144

約数和(自身を除く): 70367388

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 37, 39, 42, 52, 63, 74, 78, 84, 91, 111, 117, 126, 148, 156, 182, 222, 234, 252, 259, 263, 273, 333, 364, 444, 468, 481, 518, 526, 546, 666, 777, 789, 819, 962, 1036, 1052, 1092, 1332, 1443, 1554, 1578, 1638, 1841, 1924, 2331, 2367, 2886, 3108, 3156, 3276, 3367, 3419, 3682, 4329, 4662, 4734, 5523, 5772, 6734, 6838, 7364, 8658, 9324, 9468, 9731, 10101, 10257, 11046, 13468, 13676, 16569, 17316, 19462, 20202, 20514, 22092, 23933, 29193, 30303, 30771, 33138, 38924, 40404, 41028, 47866, 58386, 60606, 61542, 66276, 68117, 71799, 87579, 95732, 116772, 121212, 123084, 126503, 136234, 143598, 175158, 204351, 215397, 253006, 272468, 287196, 350316, 379509, 408702, 430794, 506012, 613053, 759018, 817404, 861588, 885521, 1138527, 1226106, 1518036, 1771042, 2277054, 2452212, 2656563, 3542084, 4554108, 5313126, 7969689, 10626252, 15939378, 31878756]

約数ペア:

[(1, 31878756), (2, 15939378), (3, 10626252), (4, 7969689), (6, 5313126), (7, 4554108), (9, 3542084), (12, 2656563), (13, 2452212), (14, 2277054), (18, 1771042), (21, 1518036), (26, 1226106), (28, 1138527), (36, 885521), (37, 861588), (39, 817404), (42, 759018), (52, 613053), (63, 506012), (74, 430794), (78, 408702), (84, 379509), (91, 350316), (111, 287196), (117, 272468), (126, 253006), (148, 215397), (156, 204351), (182, 175158), (222, 143598), (234, 136234), (252, 126503), (259, 123084), (263, 121212), (273, 116772), (333, 95732), (364, 87579), (444, 71799), (468, 68117), (481, 66276), (518, 61542), (526, 60606), (546, 58386), (666, 47866), (777, 41028), (789, 40404), (819, 38924), (962, 33138), (1036, 30771), (1052, 30303), (1092, 29193), (1332, 23933), (1443, 22092), (1554, 20514), (1578, 20202), (1638, 19462), (1841, 17316), (1924, 16569), (2331, 13676), (2367, 13468), (2886, 11046), (3108, 10257), (3156, 10101), (3276, 9731), (3367, 9468), (3419, 9324), (3682, 8658), (4329, 7364), (4662, 6838), (4734, 6734), (5523, 5772)]