279995680

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{26119}}^1$

素因数の和:26201

約数の個数: 48

約数和(自身を含む): 671388480

約数和(自身を除く): 391392800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2680, 5360, 10720, 26119, 52238, 104476, 130595, 208952, 261190, 417904, 522380, 835808, 1044760, 1749973, 2089520, 3499946, 4179040, 6999892, 8749865, 13999784, 17499730, 27999568, 34999460, 55999136, 69998920, 139997840, 279995680]

約数ペア:

[(1, 279995680), (2, 139997840), (4, 69998920), (5, 55999136), (8, 34999460), (10, 27999568), (16, 17499730), (20, 13999784), (32, 8749865), (40, 6999892), (67, 4179040), (80, 3499946), (134, 2089520), (160, 1749973), (268, 1044760), (335, 835808), (536, 522380), (670, 417904), (1072, 261190), (1340, 208952), (2144, 130595), (2680, 104476), (5360, 52238), (10720, 26119)]