39969975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:129

約数の個数: 96

約数和(自身を含む): 77137920

約数和(自身を除く): 37167945

約数列:

[1, 3, 5, 15, 17, 23, 25, 29, 47, 51, 69, 75, 85, 87, 115, 141, 145, 235, 255, 345, 391, 425, 435, 493, 575, 667, 705, 725, 799, 1081, 1173, 1175, 1275, 1363, 1479, 1725, 1955, 2001, 2175, 2397, 2465, 3243, 3335, 3525, 3995, 4089, 5405, 5865, 6815, 7395, 9775, 10005, 11339, 11985, 12325, 16215, 16675, 18377, 19975, 20445, 23171, 27025, 29325, 31349, 34017, 34075, 36975, 50025, 55131, 56695, 59925, 69513, 81075, 91885, 94047, 102225, 115855, 156745, 170085, 275655, 283475, 347565, 459425, 470235, 532933, 579275, 783725, 850425, 1378275, 1598799, 1737825, 2351175, 2664665, 7993995, 13323325, 39969975]

約数ペア:

[(1, 39969975), (3, 13323325), (5, 7993995), (15, 2664665), (17, 2351175), (23, 1737825), (25, 1598799), (29, 1378275), (47, 850425), (51, 783725), (69, 579275), (75, 532933), (85, 470235), (87, 459425), (115, 347565), (141, 283475), (145, 275655), (235, 170085), (255, 156745), (345, 115855), (391, 102225), (425, 94047), (435, 91885), (493, 81075), (575, 69513), (667, 59925), (705, 56695), (725, 55131), (799, 50025), (1081, 36975), (1173, 34075), (1175, 34017), (1275, 31349), (1363, 29325), (1479, 27025), (1725, 23171), (1955, 20445), (2001, 19975), (2175, 18377), (2397, 16675), (2465, 16215), (3243, 12325), (3335, 11985), (3525, 11339), (3995, 10005), (4089, 9775), (5405, 7395), (5865, 6815)]