17947820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3547}}^1$

素因数の和:3590

約数の個数: 48

約数和(自身を含む): 42916608

約数和(自身を除く): 24968788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 3547, 5060, 7094, 14188, 17735, 35470, 39017, 70940, 78034, 81581, 156068, 163162, 195085, 326324, 390170, 407905, 780340, 815810, 897391, 1631620, 1794782, 3589564, 4486955, 8973910, 17947820]

約数ペア:

[(1, 17947820), (2, 8973910), (4, 4486955), (5, 3589564), (10, 1794782), (11, 1631620), (20, 897391), (22, 815810), (23, 780340), (44, 407905), (46, 390170), (55, 326324), (92, 195085), (110, 163162), (115, 156068), (220, 81581), (230, 78034), (253, 70940), (460, 39017), (506, 35470), (1012, 17735), (1265, 14188), (2530, 7094), (3547, 5060)]