15282020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1109}}^1$

素因数の和:1184

約数の個数: 48

約数和(自身を含む): 35244720

約数和(自身を除く): 19962700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1109, 1378, 2218, 2756, 3445, 4436, 5545, 6890, 11090, 13780, 14417, 22180, 28834, 57668, 58777, 72085, 117554, 144170, 235108, 288340, 293885, 587770, 764101, 1175540, 1528202, 3056404, 3820505, 7641010, 15282020]

約数ペア:

[(1, 15282020), (2, 7641010), (4, 3820505), (5, 3056404), (10, 1528202), (13, 1175540), (20, 764101), (26, 587770), (52, 293885), (53, 288340), (65, 235108), (106, 144170), (130, 117554), (212, 72085), (260, 58777), (265, 57668), (530, 28834), (689, 22180), (1060, 14417), (1109, 13780), (1378, 11090), (2218, 6890), (2756, 5545), (3445, 4436)]