13840645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1601}}^1$

素因数の和:1645

約数の個数: 32

約数和(自身を含む): 21530880

約数和(自身を除く): 7690235

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1601, 1729, 8005, 8645, 11207, 20813, 30419, 56035, 104065, 145691, 152095, 212933, 395447, 728455, 1064665, 1977235, 2768129, 13840645]

約数ペア:

[(1, 13840645), (5, 2768129), (7, 1977235), (13, 1064665), (19, 728455), (35, 395447), (65, 212933), (91, 152095), (95, 145691), (133, 104065), (247, 56035), (455, 30419), (665, 20813), (1235, 11207), (1601, 8645), (1729, 8005)]