691505920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1087}}^1$

素因数の和:1186

約数の個数: 144

約数和(自身を含む): 1921425408

約数和(自身を除く): 1229919488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 256, 280, 284, 320, 355, 448, 497, 560, 568, 640, 710, 896, 994, 1087, 1120, 1136, 1280, 1420, 1792, 1988, 2174, 2240, 2272, 2485, 2840, 3976, 4348, 4480, 4544, 4970, 5435, 5680, 7609, 7952, 8696, 8960, 9088, 9940, 10870, 11360, 15218, 15904, 17392, 18176, 19880, 21740, 22720, 30436, 31808, 34784, 38045, 39760, 43480, 45440, 60872, 63616, 69568, 76090, 77177, 79520, 86960, 90880, 121744, 127232, 139136, 152180, 154354, 159040, 173920, 243488, 278272, 304360, 308708, 318080, 347840, 385885, 486976, 540239, 608720, 617416, 636160, 695680, 771770, 973952, 1080478, 1217440, 1234832, 1391360, 1543540, 1947904, 2160956, 2434880, 2469664, 2701195, 3087080, 4321912, 4869760, 4939328, 5402390, 6174160, 8643824, 9739520, 9878656, 10804780, 12348320, 17287648, 19757312, 21609560, 24696640, 34575296, 43219120, 49393280, 69150592, 86438240, 98786560, 138301184, 172876480, 345752960, 691505920]

約数ペア:

[(1, 691505920), (2, 345752960), (4, 172876480), (5, 138301184), (7, 98786560), (8, 86438240), (10, 69150592), (14, 49393280), (16, 43219120), (20, 34575296), (28, 24696640), (32, 21609560), (35, 19757312), (40, 17287648), (56, 12348320), (64, 10804780), (70, 9878656), (71, 9739520), (80, 8643824), (112, 6174160), (128, 5402390), (140, 4939328), (142, 4869760), (160, 4321912), (224, 3087080), (256, 2701195), (280, 2469664), (284, 2434880), (320, 2160956), (355, 1947904), (448, 1543540), (497, 1391360), (560, 1234832), (568, 1217440), (640, 1080478), (710, 973952), (896, 771770), (994, 695680), (1087, 636160), (1120, 617416), (1136, 608720), (1280, 540239), (1420, 486976), (1792, 385885), (1988, 347840), (2174, 318080), (2240, 308708), (2272, 304360), (2485, 278272), (2840, 243488), (3976, 173920), (4348, 159040), (4480, 154354), (4544, 152180), (4970, 139136), (5435, 127232), (5680, 121744), (7609, 90880), (7952, 86960), (8696, 79520), (8960, 77177), (9088, 76090), (9940, 69568), (10870, 63616), (11360, 60872), (15218, 45440), (15904, 43480), (17392, 39760), (18176, 38045), (19880, 34784), (21740, 31808), (22720, 30436)]