1298840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1709}}^1$

素因数の和:1739

約数の個数: 32

約数和(自身を含む): 3078000

約数和(自身を除く): 1779160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1709, 3418, 6836, 8545, 13672, 17090, 32471, 34180, 64942, 68360, 129884, 162355, 259768, 324710, 649420, 1298840]

約数ペア:

[(1, 1298840), (2, 649420), (4, 324710), (5, 259768), (8, 162355), (10, 129884), (19, 68360), (20, 64942), (38, 34180), (40, 32471), (76, 17090), (95, 13672), (152, 8545), (190, 6836), (380, 3418), (760, 1709)]