39880148

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 89376000

約数和(自身を除く): 49495852

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 79, 121, 149, 154, 158, 242, 298, 308, 316, 484, 553, 596, 847, 869, 1043, 1106, 1639, 1694, 1738, 2086, 2212, 3278, 3388, 3476, 4172, 6083, 6556, 9559, 11473, 11771, 12166, 18029, 19118, 22946, 23542, 24332, 36058, 38236, 45892, 47084, 66913, 72116, 82397, 126203, 129481, 133826, 164794, 252406, 258962, 267652, 329588, 504812, 517924, 906367, 1424291, 1812734, 2848582, 3625468, 5697164, 9970037, 19940074, 39880148]

約数ペア:

[(1, 39880148), (2, 19940074), (4, 9970037), (7, 5697164), (11, 3625468), (14, 2848582), (22, 1812734), (28, 1424291), (44, 906367), (77, 517924), (79, 504812), (121, 329588), (149, 267652), (154, 258962), (158, 252406), (242, 164794), (298, 133826), (308, 129481), (316, 126203), (484, 82397), (553, 72116), (596, 66913), (847, 47084), (869, 45892), (1043, 38236), (1106, 36058), (1639, 24332), (1694, 23542), (1738, 22946), (2086, 19118), (2212, 18029), (3278, 12166), (3388, 11771), (3476, 11473), (4172, 9559), (6083, 6556)]