8407420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{373}}^1$

素因数の和:419

約数の個数: 72

約数和(自身を含む): 21488544

約数和(自身を除く): 13081124

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, 373, 460, 490, 644, 746, 805, 980, 1127, 1492, 1610, 1865, 2254, 2611, 3220, 3730, 4508, 5222, 5635, 7460, 8579, 10444, 11270, 13055, 17158, 18277, 22540, 26110, 34316, 36554, 42895, 52220, 60053, 73108, 85790, 91385, 120106, 171580, 182770, 240212, 300265, 365540, 420371, 600530, 840742, 1201060, 1681484, 2101855, 4203710, 8407420]

約数ペア:

[(1, 8407420), (2, 4203710), (4, 2101855), (5, 1681484), (7, 1201060), (10, 840742), (14, 600530), (20, 420371), (23, 365540), (28, 300265), (35, 240212), (46, 182770), (49, 171580), (70, 120106), (92, 91385), (98, 85790), (115, 73108), (140, 60053), (161, 52220), (196, 42895), (230, 36554), (245, 34316), (322, 26110), (373, 22540), (460, 18277), (490, 17158), (644, 13055), (746, 11270), (805, 10444), (980, 8579), (1127, 7460), (1492, 5635), (1610, 5222), (1865, 4508), (2254, 3730), (2611, 3220)]