311917120

素因数分解:

$2^6\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1319}}^1$

素因数の和:2075

約数の個数: 56

約数和(自身を含む): 744321600

約数和(自身を除く): 432404480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 739, 1319, 1478, 2638, 2956, 3695, 5276, 5912, 6595, 7390, 10552, 11824, 13190, 14780, 21104, 23648, 26380, 29560, 42208, 47296, 52760, 59120, 84416, 105520, 118240, 211040, 236480, 422080, 974741, 1949482, 3898964, 4873705, 7797928, 9747410, 15595856, 19494820, 31191712, 38989640, 62383424, 77979280, 155958560, 311917120]

約数ペア:

[(1, 311917120), (2, 155958560), (4, 77979280), (5, 62383424), (8, 38989640), (10, 31191712), (16, 19494820), (20, 15595856), (32, 9747410), (40, 7797928), (64, 4873705), (80, 3898964), (160, 1949482), (320, 974741), (739, 422080), (1319, 236480), (1478, 211040), (2638, 118240), (2956, 105520), (3695, 84416), (5276, 59120), (5912, 52760), (6595, 47296), (7390, 42208), (10552, 29560), (11824, 26380), (13190, 23648), (14780, 21104)]