81352480

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2719}}^1$

素因数の和:2762

約数の個数: 96

約数和(自身を含む): 222082560

約数和(自身を除く): 140730080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 340, 352, 374, 440, 544, 680, 748, 880, 935, 1360, 1496, 1760, 1870, 2719, 2720, 2992, 3740, 5438, 5984, 7480, 10876, 13595, 14960, 21752, 27190, 29909, 29920, 43504, 46223, 54380, 59818, 87008, 92446, 108760, 119636, 149545, 184892, 217520, 231115, 239272, 299090, 369784, 435040, 462230, 478544, 508453, 598180, 739568, 924460, 957088, 1016906, 1196360, 1479136, 1848920, 2033812, 2392720, 2542265, 3697840, 4067624, 4785440, 5084530, 7395680, 8135248, 10169060, 16270496, 20338120, 40676240, 81352480]

約数ペア:

[(1, 81352480), (2, 40676240), (4, 20338120), (5, 16270496), (8, 10169060), (10, 8135248), (11, 7395680), (16, 5084530), (17, 4785440), (20, 4067624), (22, 3697840), (32, 2542265), (34, 2392720), (40, 2033812), (44, 1848920), (55, 1479136), (68, 1196360), (80, 1016906), (85, 957088), (88, 924460), (110, 739568), (136, 598180), (160, 508453), (170, 478544), (176, 462230), (187, 435040), (220, 369784), (272, 299090), (340, 239272), (352, 231115), (374, 217520), (440, 184892), (544, 149545), (680, 119636), (748, 108760), (880, 92446), (935, 87008), (1360, 59818), (1496, 54380), (1760, 46223), (1870, 43504), (2719, 29920), (2720, 29909), (2992, 27190), (3740, 21752), (5438, 14960), (5984, 13595), (7480, 10876)]