71390540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{274579}}^1$

素因数の和:274601

約数の個数: 24

約数和(自身を含む): 161453040

約数和(自身を除く): 90062500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 274579, 549158, 1098316, 1372895, 2745790, 3569527, 5491580, 7139054, 14278108, 17847635, 35695270, 71390540]

約数ペア:

[(1, 71390540), (2, 35695270), (4, 17847635), (5, 14278108), (10, 7139054), (13, 5491580), (20, 3569527), (26, 2745790), (52, 1372895), (65, 1098316), (130, 549158), (260, 274579)]