81115398

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{971}}^1$

素因数の和:1019

約数の個数: 128

約数和(自身を含む): 235146240

約数和(自身を除く): 154030842

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 17, 18, 21, 26, 27, 34, 39, 42, 51, 54, 63, 78, 91, 102, 117, 119, 126, 153, 182, 189, 221, 234, 238, 273, 306, 351, 357, 378, 442, 459, 546, 663, 702, 714, 819, 918, 971, 1071, 1326, 1547, 1638, 1942, 1989, 2142, 2457, 2913, 3094, 3213, 3978, 4641, 4914, 5826, 5967, 6426, 6797, 8739, 9282, 11934, 12623, 13594, 13923, 16507, 17478, 20391, 25246, 26217, 27846, 33014, 37869, 40782, 41769, 49521, 52434, 61173, 75738, 83538, 88361, 99042, 113607, 115549, 122346, 148563, 176722, 183519, 214591, 227214, 231098, 265083, 297126, 340821, 346647, 367038, 429182, 445689, 530166, 643773, 681642, 693294, 795249, 891378, 1039941, 1287546, 1502137, 1590498, 1931319, 2079882, 2385747, 3004274, 3119823, 3862638, 4506411, 4771494, 5793957, 6239646, 9012822, 11587914, 13519233, 27038466, 40557699, 81115398]

約数ペア:

[(1, 81115398), (2, 40557699), (3, 27038466), (6, 13519233), (7, 11587914), (9, 9012822), (13, 6239646), (14, 5793957), (17, 4771494), (18, 4506411), (21, 3862638), (26, 3119823), (27, 3004274), (34, 2385747), (39, 2079882), (42, 1931319), (51, 1590498), (54, 1502137), (63, 1287546), (78, 1039941), (91, 891378), (102, 795249), (117, 693294), (119, 681642), (126, 643773), (153, 530166), (182, 445689), (189, 429182), (221, 367038), (234, 346647), (238, 340821), (273, 297126), (306, 265083), (351, 231098), (357, 227214), (378, 214591), (442, 183519), (459, 176722), (546, 148563), (663, 122346), (702, 115549), (714, 113607), (819, 99042), (918, 88361), (971, 83538), (1071, 75738), (1326, 61173), (1547, 52434), (1638, 49521), (1942, 41769), (1989, 40782), (2142, 37869), (2457, 33014), (2913, 27846), (3094, 26217), (3213, 25246), (3978, 20391), (4641, 17478), (4914, 16507), (5826, 13923), (5967, 13594), (6426, 12623), (6797, 11934), (8739, 9282)]