20174828212

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{971}}^1$

素因数の和:1442

約数の個数: 144

約数和(自身を含む): 46911674880

約数和(自身を除く): 26736846668

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 49, 77, 92, 98, 154, 161, 196, 253, 308, 322, 419, 506, 539, 644, 838, 971, 1012, 1078, 1127, 1676, 1771, 1942, 2156, 2254, 2933, 3542, 3884, 4508, 4609, 5866, 6797, 7084, 9218, 9637, 10681, 11732, 12397, 13594, 18436, 19274, 20531, 21362, 22333, 24794, 27188, 32263, 38548, 41062, 42724, 44666, 47579, 49588, 64526, 67459, 74767, 82124, 89332, 95158, 106007, 129052, 134918, 149534, 156331, 190316, 212014, 225841, 245663, 269836, 299068, 312662, 406849, 424028, 451682, 472213, 491326, 523369, 625324, 742049, 813698, 903364, 944426, 982652, 1046738, 1094317, 1484098, 1627396, 1719641, 1888852, 2093476, 2188634, 2847943, 2968196, 3439282, 4377268, 4475339, 5194343, 5695886, 6878564, 8950678, 9357527, 10388686, 11391772, 12037487, 17901356, 18715054, 19935601, 20777372, 24074974, 31327373, 37430108, 39871202, 48149948, 62654746, 65502689, 79742404, 102932797, 125309492, 131005378, 205865594, 219291611, 262010756, 411731188, 438583222, 458518823, 720529579, 877166444, 917037646, 1441059158, 1834075292, 2882118316, 5043707053, 10087414106, 20174828212]

約数ペア:

[(1, 20174828212), (2, 10087414106), (4, 5043707053), (7, 2882118316), (11, 1834075292), (14, 1441059158), (22, 917037646), (23, 877166444), (28, 720529579), (44, 458518823), (46, 438583222), (49, 411731188), (77, 262010756), (92, 219291611), (98, 205865594), (154, 131005378), (161, 125309492), (196, 102932797), (253, 79742404), (308, 65502689), (322, 62654746), (419, 48149948), (506, 39871202), (539, 37430108), (644, 31327373), (838, 24074974), (971, 20777372), (1012, 19935601), (1078, 18715054), (1127, 17901356), (1676, 12037487), (1771, 11391772), (1942, 10388686), (2156, 9357527), (2254, 8950678), (2933, 6878564), (3542, 5695886), (3884, 5194343), (4508, 4475339), (4609, 4377268), (5866, 3439282), (6797, 2968196), (7084, 2847943), (9218, 2188634), (9637, 2093476), (10681, 1888852), (11732, 1719641), (12397, 1627396), (13594, 1484098), (18436, 1094317), (19274, 1046738), (20531, 982652), (21362, 944426), (22333, 903364), (24794, 813698), (27188, 742049), (32263, 625324), (38548, 523369), (41062, 491326), (42724, 472213), (44666, 451682), (47579, 424028), (49588, 406849), (64526, 312662), (67459, 299068), (74767, 269836), (82124, 245663), (89332, 225841), (95158, 212014), (106007, 190316), (129052, 156331), (134918, 149534)]