989640218

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 1793581056

約数和(自身を除く): 803940838

約数列:

[1, 2, 7, 14, 31, 62, 101, 107, 202, 211, 214, 217, 422, 434, 707, 749, 1414, 1477, 1498, 2954, 3131, 3317, 6262, 6541, 6634, 10807, 13082, 21311, 21614, 21917, 22577, 23219, 42622, 43834, 45154, 45787, 46438, 75649, 91574, 149177, 151298, 158039, 298354, 316078, 335017, 660641, 670034, 699887, 1321282, 1399774, 2280277, 2345119, 4560554, 4624487, 4690238, 4899209, 9248974, 9798418, 15961939, 31923878, 70688587, 141377174, 494820109, 989640218]

約数ペア:

[(1, 989640218), (2, 494820109), (7, 141377174), (14, 70688587), (31, 31923878), (62, 15961939), (101, 9798418), (107, 9248974), (202, 4899209), (211, 4690238), (214, 4624487), (217, 4560554), (422, 2345119), (434, 2280277), (707, 1399774), (749, 1321282), (1414, 699887), (1477, 670034), (1498, 660641), (2954, 335017), (3131, 316078), (3317, 298354), (6262, 158039), (6541, 151298), (6634, 149177), (10807, 91574), (13082, 75649), (21311, 46438), (21614, 45787), (21917, 45154), (22577, 43834), (23219, 42622)]