408907425

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{1231}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 699066368

約数和(自身を除く): 290158943

約数列:

[1, 3, 5, 15, 25, 43, 75, 103, 129, 215, 309, 515, 645, 1075, 1231, 1545, 2575, 3225, 3693, 4429, 6155, 7725, 13287, 18465, 22145, 30775, 52933, 66435, 92325, 110725, 126793, 158799, 264665, 332175, 380379, 633965, 793995, 1323325, 1901895, 3169825, 3969975, 5452099, 9509475, 16356297, 27260495, 81781485, 136302475, 408907425]

約数ペア:

[(1, 408907425), (3, 136302475), (5, 81781485), (15, 27260495), (25, 16356297), (43, 9509475), (75, 5452099), (103, 3969975), (129, 3169825), (215, 1901895), (309, 1323325), (515, 793995), (645, 633965), (1075, 380379), (1231, 332175), (1545, 264665), (2575, 158799), (3225, 126793), (3693, 110725), (4429, 92325), (6155, 66435), (7725, 52933), (13287, 30775), (18465, 22145)]