249794610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{640499}}^1$

素因数の和:640522

約数の個数: 32

約数和(自身を含む): 645624000

約数和(自身を除く): 395829390

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 640499, 1280998, 1921497, 3202495, 3842994, 6404990, 8326487, 9607485, 16652974, 19214970, 24979461, 41632435, 49958922, 83264870, 124897305, 249794610]

約数ペア:

[(1, 249794610), (2, 124897305), (3, 83264870), (5, 49958922), (6, 41632435), (10, 24979461), (13, 19214970), (15, 16652974), (26, 9607485), (30, 8326487), (39, 6404990), (65, 3842994), (78, 3202495), (130, 1921497), (195, 1280998), (390, 640499)]