138769820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{12547}}^1$

素因数の和:12642

約数の個数: 48

約数和(自身を含む): 337290240

約数和(自身を除く): 198520420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 12547, 25094, 50188, 62735, 87829, 125470, 175658, 250940, 351316, 439145, 878290, 991213, 1756580, 1982426, 3964852, 4956065, 6938491, 9912130, 13876982, 19824260, 27753964, 34692455, 69384910, 138769820]

約数ペア:

[(1, 138769820), (2, 69384910), (4, 34692455), (5, 27753964), (7, 19824260), (10, 13876982), (14, 9912130), (20, 6938491), (28, 4956065), (35, 3964852), (70, 1982426), (79, 1756580), (140, 991213), (158, 878290), (316, 439145), (395, 351316), (553, 250940), (790, 175658), (1106, 125470), (1580, 87829), (2212, 62735), (2765, 50188), (5530, 25094), (11060, 12547)]