71220820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:313

約数の個数: 96

約数和(自身を含む): 175271040

約数和(自身を除く): 104050220

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 137, 139, 170, 187, 220, 274, 278, 340, 374, 548, 556, 685, 695, 748, 935, 1370, 1390, 1507, 1529, 1870, 2329, 2363, 2740, 2780, 3014, 3058, 3740, 4658, 4726, 6028, 6116, 7535, 7645, 9316, 9452, 11645, 11815, 15070, 15290, 19043, 23290, 23630, 25619, 25993, 30140, 30580, 38086, 46580, 47260, 51238, 51986, 76172, 95215, 102476, 103972, 128095, 129965, 190430, 209473, 256190, 259930, 323731, 380860, 418946, 512380, 519860, 647462, 837892, 1047365, 1294924, 1618655, 2094730, 3237310, 3561041, 4189460, 6474620, 7122082, 14244164, 17805205, 35610410, 71220820]

約数ペア:

[(1, 71220820), (2, 35610410), (4, 17805205), (5, 14244164), (10, 7122082), (11, 6474620), (17, 4189460), (20, 3561041), (22, 3237310), (34, 2094730), (44, 1618655), (55, 1294924), (68, 1047365), (85, 837892), (110, 647462), (137, 519860), (139, 512380), (170, 418946), (187, 380860), (220, 323731), (274, 259930), (278, 256190), (340, 209473), (374, 190430), (548, 129965), (556, 128095), (685, 103972), (695, 102476), (748, 95215), (935, 76172), (1370, 51986), (1390, 51238), (1507, 47260), (1529, 46580), (1870, 38086), (2329, 30580), (2363, 30140), (2740, 25993), (2780, 25619), (3014, 23630), (3058, 23290), (3740, 19043), (4658, 15290), (4726, 15070), (6028, 11815), (6116, 11645), (7535, 9452), (7645, 9316)]