31303035

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 60343920

約数和(自身を除く): 29040885

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 83, 85, 87, 145, 153, 249, 255, 261, 289, 415, 435, 493, 747, 765, 867, 1245, 1305, 1411, 1445, 1479, 2407, 2465, 2601, 3735, 4233, 4335, 4437, 7055, 7221, 7395, 8381, 12035, 12699, 13005, 21165, 21663, 22185, 23987, 25143, 36105, 40919, 41905, 63495, 71961, 75429, 108315, 119935, 122757, 125715, 204595, 215883, 359805, 368271, 377145, 613785, 695623, 1079415, 1841355, 2086869, 3478115, 6260607, 10434345, 31303035]

約数ペア:

[(1, 31303035), (3, 10434345), (5, 6260607), (9, 3478115), (15, 2086869), (17, 1841355), (29, 1079415), (45, 695623), (51, 613785), (83, 377145), (85, 368271), (87, 359805), (145, 215883), (153, 204595), (249, 125715), (255, 122757), (261, 119935), (289, 108315), (415, 75429), (435, 71961), (493, 63495), (747, 41905), (765, 40919), (867, 36105), (1245, 25143), (1305, 23987), (1411, 22185), (1445, 21663), (1479, 21165), (2407, 13005), (2465, 12699), (2601, 12035), (3735, 8381), (4233, 7395), (4335, 7221), (4437, 7055)]