5281240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6949}}^1$

素因数の和:6979

約数の個数: 32

約数和(自身を含む): 12510000

約数和(自身を除く): 7228760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 6949, 13898, 27796, 34745, 55592, 69490, 132031, 138980, 264062, 277960, 528124, 660155, 1056248, 1320310, 2640620, 5281240]

約数ペア:

[(1, 5281240), (2, 2640620), (4, 1320310), (5, 1056248), (8, 660155), (10, 528124), (19, 277960), (20, 264062), (38, 138980), (40, 132031), (76, 69490), (95, 55592), (152, 34745), (190, 27796), (380, 13898), (760, 6949)]