66742520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128351}}^1$

素因数の和:128375

約数の個数: 32

約数和(自身を含む): 161723520

約数和(自身を除く): 94981000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 128351, 256702, 513404, 641755, 1026808, 1283510, 1668563, 2567020, 3337126, 5134040, 6674252, 8342815, 13348504, 16685630, 33371260, 66742520]

約数ペア:

[(1, 66742520), (2, 33371260), (4, 16685630), (5, 13348504), (8, 8342815), (10, 6674252), (13, 5134040), (20, 3337126), (26, 2567020), (40, 1668563), (52, 1283510), (65, 1026808), (104, 641755), (130, 513404), (260, 256702), (520, 128351)]