81963378

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:181

約数の個数: 144

約数和(自身を含む): 223722720

約数和(自身を除く): 141759342

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 49, 57, 63, 67, 73, 98, 114, 126, 133, 134, 146, 147, 171, 201, 219, 266, 294, 342, 399, 402, 438, 441, 469, 511, 603, 657, 798, 882, 931, 938, 1022, 1197, 1206, 1273, 1314, 1387, 1407, 1533, 1862, 2394, 2546, 2774, 2793, 2814, 3066, 3283, 3577, 3819, 4161, 4221, 4599, 4891, 5586, 6566, 7154, 7638, 8322, 8379, 8442, 8911, 9198, 9709, 9782, 9849, 10731, 11457, 12483, 14673, 16758, 17822, 19418, 19698, 21462, 22914, 24966, 26733, 29127, 29346, 29547, 32193, 34237, 44019, 53466, 58254, 59094, 62377, 64386, 67963, 68474, 80199, 87381, 88038, 92929, 102711, 124754, 135926, 160398, 174762, 185858, 187131, 203889, 205422, 239659, 278787, 308133, 374262, 407778, 479318, 557574, 561393, 611667, 616266, 650503, 718977, 836361, 1122786, 1223334, 1301006, 1437954, 1672722, 1951509, 2156931, 3903018, 4313862, 4553521, 5854527, 9107042, 11709054, 13660563, 27321126, 40981689, 81963378]

約数ペア:

[(1, 81963378), (2, 40981689), (3, 27321126), (6, 13660563), (7, 11709054), (9, 9107042), (14, 5854527), (18, 4553521), (19, 4313862), (21, 3903018), (38, 2156931), (42, 1951509), (49, 1672722), (57, 1437954), (63, 1301006), (67, 1223334), (73, 1122786), (98, 836361), (114, 718977), (126, 650503), (133, 616266), (134, 611667), (146, 561393), (147, 557574), (171, 479318), (201, 407778), (219, 374262), (266, 308133), (294, 278787), (342, 239659), (399, 205422), (402, 203889), (438, 187131), (441, 185858), (469, 174762), (511, 160398), (603, 135926), (657, 124754), (798, 102711), (882, 92929), (931, 88038), (938, 87381), (1022, 80199), (1197, 68474), (1206, 67963), (1273, 64386), (1314, 62377), (1387, 59094), (1407, 58254), (1533, 53466), (1862, 44019), (2394, 34237), (2546, 32193), (2774, 29547), (2793, 29346), (2814, 29127), (3066, 26733), (3283, 24966), (3577, 22914), (3819, 21462), (4161, 19698), (4221, 19418), (4599, 17822), (4891, 16758), (5586, 14673), (6566, 12483), (7154, 11457), (7638, 10731), (8322, 9849), (8379, 9782), (8442, 9709), (8911, 9198)]