51247140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17431}}^1$

素因数の和:17457

約数の個数: 72

約数和(自身を含む): 166928832

約数和(自身を除く): 115681692

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 17431, 34862, 52293, 69724, 87155, 104586, 122017, 174310, 209172, 244034, 261465, 348620, 366051, 488068, 522930, 610085, 732102, 854119, 1045860, 1220170, 1464204, 1708238, 1830255, 2440340, 2562357, 3416476, 3660510, 4270595, 5124714, 7321020, 8541190, 10249428, 12811785, 17082380, 25623570, 51247140]

約数ペア:

[(1, 51247140), (2, 25623570), (3, 17082380), (4, 12811785), (5, 10249428), (6, 8541190), (7, 7321020), (10, 5124714), (12, 4270595), (14, 3660510), (15, 3416476), (20, 2562357), (21, 2440340), (28, 1830255), (30, 1708238), (35, 1464204), (42, 1220170), (49, 1045860), (60, 854119), (70, 732102), (84, 610085), (98, 522930), (105, 488068), (140, 366051), (147, 348620), (196, 261465), (210, 244034), (245, 209172), (294, 174310), (420, 122017), (490, 104586), (588, 87155), (735, 69724), (980, 52293), (1470, 34862), (2940, 17431)]