1687366940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{74861}}^1$

素因数の和:74907

約数の個数: 72

約数和(自身を含む): 4301271072

約数和(自身を除く): 2613904132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 11270, 22540, 74861, 149722, 299444, 374305, 524027, 748610, 1048054, 1497220, 1721803, 2096108, 2620135, 3443606, 3668189, 5240270, 6887212, 7336378, 8609015, 10480540, 12052621, 14672756, 17218030, 18340945, 24105242, 34436060, 36681890, 48210484, 60263105, 73363780, 84368347, 120526210, 168736694, 241052420, 337473388, 421841735, 843683470, 1687366940]

約数ペア:

[(1, 1687366940), (2, 843683470), (4, 421841735), (5, 337473388), (7, 241052420), (10, 168736694), (14, 120526210), (20, 84368347), (23, 73363780), (28, 60263105), (35, 48210484), (46, 36681890), (49, 34436060), (70, 24105242), (92, 18340945), (98, 17218030), (115, 14672756), (140, 12052621), (161, 10480540), (196, 8609015), (230, 7336378), (245, 6887212), (322, 5240270), (460, 3668189), (490, 3443606), (644, 2620135), (805, 2096108), (980, 1721803), (1127, 1497220), (1610, 1048054), (2254, 748610), (3220, 524027), (4508, 374305), (5635, 299444), (11270, 149722), (22540, 74861)]