178228765

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 283143168

約数和(自身を除く): 104914403

約数列:

[1, 5, 11, 13, 17, 31, 43, 55, 65, 85, 121, 143, 155, 187, 215, 221, 341, 403, 473, 527, 559, 605, 715, 731, 935, 1105, 1333, 1573, 1705, 2015, 2057, 2365, 2431, 2635, 2795, 3655, 3751, 4433, 5203, 5797, 6149, 6665, 6851, 7865, 8041, 9503, 10285, 12155, 14663, 17329, 18755, 22165, 22661, 26015, 26741, 28985, 30745, 34255, 40205, 47515, 48763, 63767, 67639, 73315, 75361, 86645, 88451, 104533, 113305, 133705, 161293, 190619, 243815, 249271, 294593, 318835, 338195, 376805, 442255, 522665, 806465, 828971, 953095, 1149863, 1246355, 1472965, 2096809, 2741981, 3240523, 4144855, 5749315, 10484045, 13709905, 16202615, 35645753, 178228765]

約数ペア:

[(1, 178228765), (5, 35645753), (11, 16202615), (13, 13709905), (17, 10484045), (31, 5749315), (43, 4144855), (55, 3240523), (65, 2741981), (85, 2096809), (121, 1472965), (143, 1246355), (155, 1149863), (187, 953095), (215, 828971), (221, 806465), (341, 522665), (403, 442255), (473, 376805), (527, 338195), (559, 318835), (605, 294593), (715, 249271), (731, 243815), (935, 190619), (1105, 161293), (1333, 133705), (1573, 113305), (1705, 104533), (2015, 88451), (2057, 86645), (2365, 75361), (2431, 73315), (2635, 67639), (2795, 63767), (3655, 48763), (3751, 47515), (4433, 40205), (5203, 34255), (5797, 30745), (6149, 28985), (6665, 26741), (6851, 26015), (7865, 22661), (8041, 22165), (9503, 18755), (10285, 17329), (12155, 14663)]