209205416

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{70487}}^1$

素因数の和:70553

約数の個数: 32

約数和(自身を含む): 456762240

約数和(自身を除く): 247556824

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 70487, 140974, 281948, 493409, 563896, 986818, 1973636, 3735811, 3947272, 7471622, 14943244, 26150677, 29886488, 52301354, 104602708, 209205416]

約数ペア:

[(1, 209205416), (2, 104602708), (4, 52301354), (7, 29886488), (8, 26150677), (14, 14943244), (28, 7471622), (53, 3947272), (56, 3735811), (106, 1973636), (212, 986818), (371, 563896), (424, 493409), (742, 281948), (1484, 140974), (2968, 70487)]