128671816

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{176747}}^1$

素因数の和:176773

約数の個数: 32

約数和(自身を含む): 296936640

約数和(自身を除く): 168264824

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 176747, 353494, 706988, 1237229, 1413976, 2297711, 2474458, 4595422, 4948916, 9190844, 9897832, 16083977, 18381688, 32167954, 64335908, 128671816]

約数ペア:

[(1, 128671816), (2, 64335908), (4, 32167954), (7, 18381688), (8, 16083977), (13, 9897832), (14, 9190844), (26, 4948916), (28, 4595422), (52, 2474458), (56, 2297711), (91, 1413976), (104, 1237229), (182, 706988), (364, 353494), (728, 176747)]