261609880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{3373}}^1$

素因数の和:3668

約数の個数: 64

約数和(自身を含む): 675339840

約数和(自身を除く): 413729960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 277, 280, 554, 1108, 1385, 1939, 2216, 2770, 3373, 3878, 5540, 6746, 7756, 9695, 11080, 13492, 15512, 16865, 19390, 23611, 26984, 33730, 38780, 47222, 67460, 77560, 94444, 118055, 134920, 188888, 236110, 472220, 934321, 944440, 1868642, 3737284, 4671605, 6540247, 7474568, 9343210, 13080494, 18686420, 26160988, 32701235, 37372840, 52321976, 65402470, 130804940, 261609880]

約数ペア:

[(1, 261609880), (2, 130804940), (4, 65402470), (5, 52321976), (7, 37372840), (8, 32701235), (10, 26160988), (14, 18686420), (20, 13080494), (28, 9343210), (35, 7474568), (40, 6540247), (56, 4671605), (70, 3737284), (140, 1868642), (277, 944440), (280, 934321), (554, 472220), (1108, 236110), (1385, 188888), (1939, 134920), (2216, 118055), (2770, 94444), (3373, 77560), (3878, 67460), (5540, 47222), (6746, 38780), (7756, 33730), (9695, 26984), (11080, 23611), (13492, 19390), (15512, 16865)]