90406425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 164149216

約数和(自身を除く): 73742791

約数列:

[1, 3, 5, 15, 17, 25, 43, 51, 75, 85, 97, 129, 215, 255, 289, 291, 425, 485, 645, 731, 867, 1075, 1275, 1445, 1455, 1649, 2193, 2425, 3225, 3655, 4171, 4335, 4947, 7225, 7275, 8245, 10965, 12427, 12513, 18275, 20855, 21675, 24735, 28033, 37281, 41225, 54825, 62135, 62565, 70907, 84099, 104275, 123675, 140165, 186405, 212721, 310675, 312825, 354535, 420495, 700825, 932025, 1063605, 1205419, 1772675, 2102475, 3616257, 5318025, 6027095, 18081285, 30135475, 90406425]

約数ペア:

[(1, 90406425), (3, 30135475), (5, 18081285), (15, 6027095), (17, 5318025), (25, 3616257), (43, 2102475), (51, 1772675), (75, 1205419), (85, 1063605), (97, 932025), (129, 700825), (215, 420495), (255, 354535), (289, 312825), (291, 310675), (425, 212721), (485, 186405), (645, 140165), (731, 123675), (867, 104275), (1075, 84099), (1275, 70907), (1445, 62565), (1455, 62135), (1649, 54825), (2193, 41225), (2425, 37281), (3225, 28033), (3655, 24735), (4171, 21675), (4335, 20855), (4947, 18275), (7225, 12513), (7275, 12427), (8245, 10965)]