131531840

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 168

約数和(自身を含む): 356737920

約数和(自身を除く): 225206080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 43, 44, 55, 64, 79, 80, 86, 88, 110, 121, 158, 160, 172, 176, 215, 220, 242, 316, 320, 344, 352, 395, 430, 440, 473, 484, 605, 632, 688, 704, 790, 860, 869, 880, 946, 968, 1210, 1264, 1376, 1580, 1720, 1738, 1760, 1892, 1936, 2365, 2420, 2528, 2752, 3160, 3397, 3440, 3476, 3520, 3784, 3872, 4345, 4730, 4840, 5056, 5203, 6320, 6794, 6880, 6952, 7568, 7744, 8690, 9460, 9559, 9680, 10406, 12640, 13588, 13760, 13904, 15136, 16985, 17380, 18920, 19118, 19360, 20812, 25280, 26015, 27176, 27808, 30272, 33970, 34760, 37367, 37840, 38236, 38720, 41624, 47795, 52030, 54352, 55616, 67940, 69520, 74734, 75680, 76472, 83248, 95590, 104060, 108704, 135880, 139040, 149468, 151360, 152944, 166496, 186835, 191180, 208120, 217408, 271760, 278080, 298936, 305888, 332992, 373670, 382360, 411037, 416240, 543520, 597872, 611776, 747340, 764720, 822074, 832480, 1087040, 1195744, 1494680, 1529440, 1644148, 1664960, 2055185, 2391488, 2989360, 3058880, 3288296, 4110370, 5978720, 6576592, 8220740, 11957440, 13153184, 16441480, 26306368, 32882960, 65765920, 131531840]

約数ペア:

[(1, 131531840), (2, 65765920), (4, 32882960), (5, 26306368), (8, 16441480), (10, 13153184), (11, 11957440), (16, 8220740), (20, 6576592), (22, 5978720), (32, 4110370), (40, 3288296), (43, 3058880), (44, 2989360), (55, 2391488), (64, 2055185), (79, 1664960), (80, 1644148), (86, 1529440), (88, 1494680), (110, 1195744), (121, 1087040), (158, 832480), (160, 822074), (172, 764720), (176, 747340), (215, 611776), (220, 597872), (242, 543520), (316, 416240), (320, 411037), (344, 382360), (352, 373670), (395, 332992), (430, 305888), (440, 298936), (473, 278080), (484, 271760), (605, 217408), (632, 208120), (688, 191180), (704, 186835), (790, 166496), (860, 152944), (869, 151360), (880, 149468), (946, 139040), (968, 135880), (1210, 108704), (1264, 104060), (1376, 95590), (1580, 83248), (1720, 76472), (1738, 75680), (1760, 74734), (1892, 69520), (1936, 67940), (2365, 55616), (2420, 54352), (2528, 52030), (2752, 47795), (3160, 41624), (3397, 38720), (3440, 38236), (3476, 37840), (3520, 37367), (3784, 34760), (3872, 33970), (4345, 30272), (4730, 27808), (4840, 27176), (5056, 26015), (5203, 25280), (6320, 20812), (6794, 19360), (6880, 19118), (6952, 18920), (7568, 17380), (7744, 16985), (8690, 15136), (9460, 13904), (9559, 13760), (9680, 13588), (10406, 12640)]