386840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 918000

約数和(自身を除く): 531160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 509, 760, 1018, 2036, 2545, 4072, 5090, 9671, 10180, 19342, 20360, 38684, 48355, 77368, 96710, 193420, 386840]

約数ペア:

[(1, 386840), (2, 193420), (4, 96710), (5, 77368), (8, 48355), (10, 38684), (19, 20360), (20, 19342), (38, 10180), (40, 9671), (76, 5090), (95, 4072), (152, 2545), (190, 2036), (380, 1018), (509, 760)]