25386140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{389}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 57788640

約数和(自身を除く): 32402500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 251, 260, 389, 502, 778, 1004, 1255, 1556, 1945, 2510, 3263, 3890, 5020, 5057, 6526, 7780, 10114, 13052, 16315, 20228, 25285, 32630, 50570, 65260, 97639, 101140, 195278, 390556, 488195, 976390, 1269307, 1952780, 2538614, 5077228, 6346535, 12693070, 25386140]

約数ペア:

[(1, 25386140), (2, 12693070), (4, 6346535), (5, 5077228), (10, 2538614), (13, 1952780), (20, 1269307), (26, 976390), (52, 488195), (65, 390556), (130, 195278), (251, 101140), (260, 97639), (389, 65260), (502, 50570), (778, 32630), (1004, 25285), (1255, 20228), (1556, 16315), (1945, 13052), (2510, 10114), (3263, 7780), (3890, 6526), (5020, 5057)]