131645375

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:740

約数の個数: 32

約数和(自身を含む): 173062656

約数和(自身を除く): 41417281

約数列:

[1, 5, 25, 31, 53, 125, 155, 265, 641, 775, 1325, 1643, 3205, 3875, 6625, 8215, 16025, 19871, 33973, 41075, 80125, 99355, 169865, 205375, 496775, 849325, 1053163, 2483875, 4246625, 5265815, 26329075, 131645375]

約数ペア:

[(1, 131645375), (5, 26329075), (25, 5265815), (31, 4246625), (53, 2483875), (125, 1053163), (155, 849325), (265, 496775), (641, 205375), (775, 169865), (1325, 99355), (1643, 80125), (3205, 41075), (3875, 33973), (6625, 19871), (8215, 16025)]