138580040

素因数分解:

$2^3\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{2713}}^1$

素因数の和:4001

約数の個数: 32

約数和(自身を含む): 312164280

約数和(自身を除く): 173584240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1277, 2554, 2713, 5108, 5426, 6385, 10216, 10852, 12770, 13565, 21704, 25540, 27130, 51080, 54260, 108520, 3464501, 6929002, 13858004, 17322505, 27716008, 34645010, 69290020, 138580040]

約数ペア:

[(1, 138580040), (2, 69290020), (4, 34645010), (5, 27716008), (8, 17322505), (10, 13858004), (20, 6929002), (40, 3464501), (1277, 108520), (2554, 54260), (2713, 51080), (5108, 27130), (5426, 25540), (6385, 21704), (10216, 13565), (10852, 12770)]