399213780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{135787}}^1$

素因数の和:135813

約数の個数: 72

約数和(自身を含む): 1300305888

約数和(自身を除く): 901092108

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, 135787, 271574, 407361, 543148, 678935, 814722, 950509, 1357870, 1629444, 1901018, 2036805, 2715740, 2851527, 3802036, 4073610, 4752545, 5703054, 6653563, 8147220, 9505090, 11406108, 13307126, 14257635, 19010180, 19960689, 26614252, 28515270, 33267815, 39921378, 57030540, 66535630, 79842756, 99803445, 133071260, 199606890, 399213780]

約数ペア:

[(1, 399213780), (2, 199606890), (3, 133071260), (4, 99803445), (5, 79842756), (6, 66535630), (7, 57030540), (10, 39921378), (12, 33267815), (14, 28515270), (15, 26614252), (20, 19960689), (21, 19010180), (28, 14257635), (30, 13307126), (35, 11406108), (42, 9505090), (49, 8147220), (60, 6653563), (70, 5703054), (84, 4752545), (98, 4073610), (105, 3802036), (140, 2851527), (147, 2715740), (196, 2036805), (210, 1901018), (245, 1629444), (294, 1357870), (420, 950509), (490, 814722), (588, 678935), (735, 543148), (980, 407361), (1470, 271574), (2940, 135787)]