81706716

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{509}}^1$

素因数の和:553

約数の個数: 144

約数和(自身を含む): 259896000

約数和(自身を除く): 178189284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 49, 52, 63, 78, 84, 91, 98, 117, 126, 147, 156, 182, 196, 234, 252, 273, 294, 343, 364, 441, 468, 509, 546, 588, 637, 686, 819, 882, 1018, 1029, 1092, 1274, 1372, 1527, 1638, 1764, 1911, 2036, 2058, 2548, 3054, 3087, 3276, 3563, 3822, 4116, 4459, 4581, 5733, 6108, 6174, 6617, 7126, 7644, 8918, 9162, 10689, 11466, 12348, 13234, 13377, 14252, 17836, 18324, 19851, 21378, 22932, 24941, 26468, 26754, 32067, 39702, 40131, 42756, 46319, 49882, 53508, 59553, 64134, 74823, 79404, 80262, 92638, 99764, 119106, 128268, 138957, 149646, 160524, 174587, 185276, 224469, 238212, 277914, 299292, 324233, 349174, 416871, 448938, 523761, 555828, 648466, 698348, 833742, 897876, 972699, 1047522, 1296932, 1571283, 1667484, 1945398, 2095044, 2269631, 2918097, 3142566, 3890796, 4539262, 5836194, 6285132, 6808893, 9078524, 11672388, 13617786, 20426679, 27235572, 40853358, 81706716]

約数ペア:

[(1, 81706716), (2, 40853358), (3, 27235572), (4, 20426679), (6, 13617786), (7, 11672388), (9, 9078524), (12, 6808893), (13, 6285132), (14, 5836194), (18, 4539262), (21, 3890796), (26, 3142566), (28, 2918097), (36, 2269631), (39, 2095044), (42, 1945398), (49, 1667484), (52, 1571283), (63, 1296932), (78, 1047522), (84, 972699), (91, 897876), (98, 833742), (117, 698348), (126, 648466), (147, 555828), (156, 523761), (182, 448938), (196, 416871), (234, 349174), (252, 324233), (273, 299292), (294, 277914), (343, 238212), (364, 224469), (441, 185276), (468, 174587), (509, 160524), (546, 149646), (588, 138957), (637, 128268), (686, 119106), (819, 99764), (882, 92638), (1018, 80262), (1029, 79404), (1092, 74823), (1274, 64134), (1372, 59553), (1527, 53508), (1638, 49882), (1764, 46319), (1911, 42756), (2036, 40131), (2058, 39702), (2548, 32067), (3054, 26754), (3087, 26468), (3276, 24941), (3563, 22932), (3822, 21378), (4116, 19851), (4459, 18324), (4581, 17836), (5733, 14252), (6108, 13377), (6174, 13234), (6617, 12348), (7126, 11466), (7644, 10689), (8918, 9162)]