20000920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26317}}^1$

素因数の和:26347

約数の個数: 32

約数和(自身を含む): 47372400

約数和(自身を除く): 27371480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26317, 52634, 105268, 131585, 210536, 263170, 500023, 526340, 1000046, 1052680, 2000092, 2500115, 4000184, 5000230, 10000460, 20000920]

約数ペア:

[(1, 20000920), (2, 10000460), (4, 5000230), (5, 4000184), (8, 2500115), (10, 2000092), (19, 1052680), (20, 1000046), (38, 526340), (40, 500023), (76, 263170), (95, 210536), (152, 131585), (190, 105268), (380, 52634), (760, 26317)]