77956760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2003}}^1$

素因数の和:2160

約数の個数: 64

約数和(自身を含む): 202003200

約数和(自身を除く): 124046440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2003, 2780, 3892, 4006, 4865, 5560, 7784, 8012, 9730, 10015, 14021, 16024, 19460, 20030, 28042, 38920, 40060, 56084, 70105, 80120, 112168, 140210, 278417, 280420, 556834, 560840, 1113668, 1392085, 1948919, 2227336, 2784170, 3897838, 5568340, 7795676, 9744595, 11136680, 15591352, 19489190, 38978380, 77956760]

約数ペア:

[(1, 77956760), (2, 38978380), (4, 19489190), (5, 15591352), (7, 11136680), (8, 9744595), (10, 7795676), (14, 5568340), (20, 3897838), (28, 2784170), (35, 2227336), (40, 1948919), (56, 1392085), (70, 1113668), (139, 560840), (140, 556834), (278, 280420), (280, 278417), (556, 140210), (695, 112168), (973, 80120), (1112, 70105), (1390, 56084), (1946, 40060), (2003, 38920), (2780, 28042), (3892, 20030), (4006, 19460), (4865, 16024), (5560, 14021), (7784, 10015), (8012, 9730)]