290996818

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{20641}}^1$

素因数の和:20722

約数の個数: 32

約数和(自身を含む): 535040640

約数和(自身を除く): 244043822

約数列:

[1, 2, 7, 14, 19, 38, 53, 106, 133, 266, 371, 742, 1007, 2014, 7049, 14098, 20641, 41282, 144487, 288974, 392179, 784358, 1093973, 2187946, 2745253, 5490506, 7657811, 15315622, 20785487, 41570974, 145498409, 290996818]

約数ペア:

[(1, 290996818), (2, 145498409), (7, 41570974), (14, 20785487), (19, 15315622), (38, 7657811), (53, 5490506), (106, 2745253), (133, 2187946), (266, 1093973), (371, 784358), (742, 392179), (1007, 288974), (2014, 144487), (7049, 41282), (14098, 20641)]