13888520

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3371}}^1$

素因数の和:3485

約数の個数: 32

約数和(自身を含む): 31561920

約数和(自身を除く): 17673400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 3371, 4120, 6742, 13484, 16855, 26968, 33710, 67420, 134840, 347213, 694426, 1388852, 1736065, 2777704, 3472130, 6944260, 13888520]

約数ペア:

[(1, 13888520), (2, 6944260), (4, 3472130), (5, 2777704), (8, 1736065), (10, 1388852), (20, 694426), (40, 347213), (103, 134840), (206, 67420), (412, 33710), (515, 26968), (824, 16855), (1030, 13484), (2060, 6742), (3371, 4120)]