398260045

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{3907}}^1$

素因数の和:3997

約数の個数: 32

約数和(自身を含む): 534614400

約数和(自身を除く): 136354355

約数列:

[1, 5, 19, 29, 37, 95, 145, 185, 551, 703, 1073, 2755, 3515, 3907, 5365, 19535, 20387, 74233, 101935, 113303, 144559, 371165, 566515, 722795, 2152757, 2746621, 4192211, 10763785, 13733105, 20961055, 79652009, 398260045]

約数ペア:

[(1, 398260045), (5, 79652009), (19, 20961055), (29, 13733105), (37, 10763785), (95, 4192211), (145, 2746621), (185, 2152757), (551, 722795), (703, 566515), (1073, 371165), (2755, 144559), (3515, 113303), (3907, 101935), (5365, 74233), (19535, 20387)]