139577980

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{13711}}^1$

素因数の和:14229

約数の個数: 24

約数和(自身を含む): 293711040

約数和(自身を除く): 154133060

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 10180, 13711, 27422, 54844, 68555, 137110, 274220, 6978899, 13957798, 27915596, 34894495, 69788990, 139577980]

約数ペア:

[(1, 139577980), (2, 69788990), (4, 34894495), (5, 27915596), (10, 13957798), (20, 6978899), (509, 274220), (1018, 137110), (2036, 68555), (2545, 54844), (5090, 27422), (10180, 13711)]