108571428

素因数分解:

$2^2\times 3^9\times 7^1\times {\mathrm{197}}^1$

素因数の和:235

約数の個数: 120

約数和(自身を含む): 327362112

約数和(自身を除く): 218790684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 197, 243, 252, 324, 378, 394, 486, 567, 591, 729, 756, 788, 972, 1134, 1182, 1379, 1458, 1701, 1773, 2187, 2268, 2364, 2758, 2916, 3402, 3546, 4137, 4374, 5103, 5319, 5516, 6561, 6804, 7092, 8274, 8748, 10206, 10638, 12411, 13122, 15309, 15957, 16548, 19683, 20412, 21276, 24822, 26244, 30618, 31914, 37233, 39366, 45927, 47871, 49644, 61236, 63828, 74466, 78732, 91854, 95742, 111699, 137781, 143613, 148932, 183708, 191484, 223398, 275562, 287226, 335097, 430839, 446796, 551124, 574452, 670194, 861678, 1005291, 1292517, 1340388, 1723356, 2010582, 2585034, 3015873, 3877551, 4021164, 5170068, 6031746, 7755102, 9047619, 12063492, 15510204, 18095238, 27142857, 36190476, 54285714, 108571428]

約数ペア:

[(1, 108571428), (2, 54285714), (3, 36190476), (4, 27142857), (6, 18095238), (7, 15510204), (9, 12063492), (12, 9047619), (14, 7755102), (18, 6031746), (21, 5170068), (27, 4021164), (28, 3877551), (36, 3015873), (42, 2585034), (54, 2010582), (63, 1723356), (81, 1340388), (84, 1292517), (108, 1005291), (126, 861678), (162, 670194), (189, 574452), (197, 551124), (243, 446796), (252, 430839), (324, 335097), (378, 287226), (394, 275562), (486, 223398), (567, 191484), (591, 183708), (729, 148932), (756, 143613), (788, 137781), (972, 111699), (1134, 95742), (1182, 91854), (1379, 78732), (1458, 74466), (1701, 63828), (1773, 61236), (2187, 49644), (2268, 47871), (2364, 45927), (2758, 39366), (2916, 37233), (3402, 31914), (3546, 30618), (4137, 26244), (4374, 24822), (5103, 21276), (5319, 20412), (5516, 19683), (6561, 16548), (6804, 15957), (7092, 15309), (8274, 13122), (8748, 12411), (10206, 10638)]