399369796

素因数分解:

$2^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 832537440

約数和(自身を除く): 433167644

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 107, 137, 139, 196, 214, 274, 278, 428, 548, 556, 749, 959, 973, 1498, 1918, 1946, 2996, 3836, 3892, 5243, 6713, 6811, 10486, 13426, 13622, 14659, 14873, 19043, 20972, 26852, 27244, 29318, 29746, 38086, 58636, 59492, 76172, 102613, 104111, 133301, 205226, 208222, 266602, 410452, 416444, 533204, 718291, 728777, 933107, 1436582, 1457554, 1866214, 2037601, 2873164, 2915108, 3732428, 4075202, 8150404, 14263207, 28526414, 57052828, 99842449, 199684898, 399369796]

約数ペア:

[(1, 399369796), (2, 199684898), (4, 99842449), (7, 57052828), (14, 28526414), (28, 14263207), (49, 8150404), (98, 4075202), (107, 3732428), (137, 2915108), (139, 2873164), (196, 2037601), (214, 1866214), (274, 1457554), (278, 1436582), (428, 933107), (548, 728777), (556, 718291), (749, 533204), (959, 416444), (973, 410452), (1498, 266602), (1918, 208222), (1946, 205226), (2996, 133301), (3836, 104111), (3892, 102613), (5243, 76172), (6713, 59492), (6811, 58636), (10486, 38086), (13426, 29746), (13622, 29318), (14659, 27244), (14873, 26852), (19043, 20972)]