221754764

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:160

約数の個数: 144

約数和(自身を含む): 526424640

約数和(自身を除く): 304669876

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 37, 44, 58, 61, 74, 77, 116, 121, 122, 148, 154, 203, 242, 244, 259, 308, 319, 406, 407, 427, 484, 518, 638, 671, 812, 814, 847, 854, 1036, 1073, 1276, 1342, 1628, 1694, 1708, 1769, 2146, 2233, 2257, 2684, 2849, 3388, 3509, 3538, 4292, 4466, 4477, 4514, 4697, 5698, 7018, 7076, 7381, 7511, 8932, 8954, 9028, 9394, 11396, 11803, 12383, 14036, 14762, 15022, 15799, 17908, 18788, 19459, 23606, 24563, 24766, 24827, 29524, 30044, 31339, 31598, 38918, 47212, 49126, 49532, 49654, 51667, 62678, 63196, 65453, 77836, 82621, 98252, 99308, 103334, 125356, 129833, 130906, 136213, 165242, 173789, 206668, 214049, 259666, 261812, 272426, 273097, 330484, 347578, 428098, 458171, 519332, 544852, 546194, 695156, 719983, 856196, 908831, 916342, 1092388, 1439966, 1498343, 1817662, 1832684, 1911679, 2879932, 2996686, 3635324, 3823358, 5039881, 5993372, 7646716, 7919813, 10079762, 15839626, 20159524, 31679252, 55438691, 110877382, 221754764]

約数ペア:

[(1, 221754764), (2, 110877382), (4, 55438691), (7, 31679252), (11, 20159524), (14, 15839626), (22, 10079762), (28, 7919813), (29, 7646716), (37, 5993372), (44, 5039881), (58, 3823358), (61, 3635324), (74, 2996686), (77, 2879932), (116, 1911679), (121, 1832684), (122, 1817662), (148, 1498343), (154, 1439966), (203, 1092388), (242, 916342), (244, 908831), (259, 856196), (308, 719983), (319, 695156), (406, 546194), (407, 544852), (427, 519332), (484, 458171), (518, 428098), (638, 347578), (671, 330484), (812, 273097), (814, 272426), (847, 261812), (854, 259666), (1036, 214049), (1073, 206668), (1276, 173789), (1342, 165242), (1628, 136213), (1694, 130906), (1708, 129833), (1769, 125356), (2146, 103334), (2233, 99308), (2257, 98252), (2684, 82621), (2849, 77836), (3388, 65453), (3509, 63196), (3538, 62678), (4292, 51667), (4466, 49654), (4477, 49532), (4514, 49126), (4697, 47212), (5698, 38918), (7018, 31598), (7076, 31339), (7381, 30044), (7511, 29524), (8932, 24827), (8954, 24766), (9028, 24563), (9394, 23606), (11396, 19459), (11803, 18788), (12383, 17908), (14036, 15799), (14762, 15022)]