249743910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{640369}}^1$

素因数の和:640392

約数の個数: 32

約数和(自身を含む): 645492960

約数和(自身を除く): 395749050

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 640369, 1280738, 1921107, 3201845, 3842214, 6403690, 8324797, 9605535, 16649594, 19211070, 24974391, 41623985, 49948782, 83247970, 124871955, 249743910]

約数ペア:

[(1, 249743910), (2, 124871955), (3, 83247970), (5, 49948782), (6, 41623985), (10, 24974391), (13, 19211070), (15, 16649594), (26, 9605535), (30, 8324797), (39, 6403690), (65, 3842214), (78, 3201845), (130, 1921107), (195, 1280738), (390, 640369)]