257890440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2149087}}^1$

素因数の和:2149101

約数の個数: 32

約数和(自身を含む): 773671680

約数和(自身を除く): 515781240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2149087, 4298174, 6447261, 8596348, 10745435, 12894522, 17192696, 21490870, 25789044, 32236305, 42981740, 51578088, 64472610, 85963480, 128945220, 257890440]

約数ペア:

[(1, 257890440), (2, 128945220), (3, 85963480), (4, 64472610), (5, 51578088), (6, 42981740), (8, 32236305), (10, 25789044), (12, 21490870), (15, 17192696), (20, 12894522), (24, 10745435), (30, 8596348), (40, 6447261), (60, 4298174), (120, 2149087)]