207872980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:485

約数の個数: 96

約数和(自身を含む): 519708672

約数和(自身を除く): 311835692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 211, 217, 227, 310, 422, 434, 454, 620, 844, 868, 908, 1055, 1085, 1135, 1477, 1589, 2110, 2170, 2270, 2954, 3178, 4220, 4340, 4540, 5908, 6356, 6541, 7037, 7385, 7945, 13082, 14074, 14770, 15890, 26164, 28148, 29540, 31780, 32705, 35185, 45787, 47897, 49259, 65410, 70370, 91574, 95794, 98518, 130820, 140740, 183148, 191588, 197036, 228935, 239485, 246295, 335279, 457870, 478970, 492590, 670558, 915740, 957940, 985180, 1341116, 1484807, 1676395, 2969614, 3352790, 5939228, 6705580, 7424035, 10393649, 14848070, 20787298, 29696140, 41574596, 51968245, 103936490, 207872980]

約数ペア:

[(1, 207872980), (2, 103936490), (4, 51968245), (5, 41574596), (7, 29696140), (10, 20787298), (14, 14848070), (20, 10393649), (28, 7424035), (31, 6705580), (35, 5939228), (62, 3352790), (70, 2969614), (124, 1676395), (140, 1484807), (155, 1341116), (211, 985180), (217, 957940), (227, 915740), (310, 670558), (422, 492590), (434, 478970), (454, 457870), (620, 335279), (844, 246295), (868, 239485), (908, 228935), (1055, 197036), (1085, 191588), (1135, 183148), (1477, 140740), (1589, 130820), (2110, 98518), (2170, 95794), (2270, 91574), (2954, 70370), (3178, 65410), (4220, 49259), (4340, 47897), (4540, 45787), (5908, 35185), (6356, 32705), (6541, 31780), (7037, 29540), (7385, 28148), (7945, 26164), (13082, 15890), (14074, 14770)]