77217280

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:200

約数の個数: 160

約数和(自身を含む): 219985920

約数和(自身を除く): 142768640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 139, 140, 155, 160, 217, 224, 248, 256, 278, 280, 310, 320, 434, 448, 496, 512, 556, 560, 620, 640, 695, 868, 896, 973, 992, 1085, 1112, 1120, 1240, 1280, 1390, 1736, 1792, 1946, 1984, 2170, 2224, 2240, 2480, 2560, 2780, 3472, 3584, 3892, 3968, 4309, 4340, 4448, 4480, 4865, 4960, 5560, 6944, 7784, 7936, 8618, 8680, 8896, 8960, 9730, 9920, 11120, 13888, 15568, 15872, 17236, 17360, 17792, 17920, 19460, 19840, 21545, 22240, 27776, 30163, 31136, 34472, 34720, 35584, 38920, 39680, 43090, 44480, 55552, 60326, 62272, 68944, 69440, 71168, 77840, 79360, 86180, 88960, 111104, 120652, 124544, 137888, 138880, 150815, 155680, 172360, 177920, 241304, 249088, 275776, 277760, 301630, 311360, 344720, 355840, 482608, 498176, 551552, 555520, 603260, 622720, 689440, 965216, 1103104, 1206520, 1245440, 1378880, 1930432, 2206208, 2413040, 2490880, 2757760, 3860864, 4826080, 5515520, 7721728, 9652160, 11031040, 15443456, 19304320, 38608640, 77217280]

約数ペア:

[(1, 77217280), (2, 38608640), (4, 19304320), (5, 15443456), (7, 11031040), (8, 9652160), (10, 7721728), (14, 5515520), (16, 4826080), (20, 3860864), (28, 2757760), (31, 2490880), (32, 2413040), (35, 2206208), (40, 1930432), (56, 1378880), (62, 1245440), (64, 1206520), (70, 1103104), (80, 965216), (112, 689440), (124, 622720), (128, 603260), (139, 555520), (140, 551552), (155, 498176), (160, 482608), (217, 355840), (224, 344720), (248, 311360), (256, 301630), (278, 277760), (280, 275776), (310, 249088), (320, 241304), (434, 177920), (448, 172360), (496, 155680), (512, 150815), (556, 138880), (560, 137888), (620, 124544), (640, 120652), (695, 111104), (868, 88960), (896, 86180), (973, 79360), (992, 77840), (1085, 71168), (1112, 69440), (1120, 68944), (1240, 62272), (1280, 60326), (1390, 55552), (1736, 44480), (1792, 43090), (1946, 39680), (1984, 38920), (2170, 35584), (2224, 34720), (2240, 34472), (2480, 31136), (2560, 30163), (2780, 27776), (3472, 22240), (3584, 21545), (3892, 19840), (3968, 19460), (4309, 17920), (4340, 17792), (4448, 17360), (4480, 17236), (4865, 15872), (4960, 15568), (5560, 13888), (6944, 11120), (7784, 9920), (7936, 9730), (8618, 8960), (8680, 8896)]