206996840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{797}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 480332160

約数和(自身を除く): 273335320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 151, 172, 215, 302, 344, 430, 604, 755, 797, 860, 1208, 1510, 1594, 1720, 3020, 3188, 3985, 6040, 6376, 6493, 7970, 12986, 15940, 25972, 31880, 32465, 34271, 51944, 64930, 68542, 120347, 129860, 137084, 171355, 240694, 259720, 274168, 342710, 481388, 601735, 685420, 962776, 1203470, 1370840, 2406940, 4813880, 5174921, 10349842, 20699684, 25874605, 41399368, 51749210, 103498420, 206996840]

約数ペア:

[(1, 206996840), (2, 103498420), (4, 51749210), (5, 41399368), (8, 25874605), (10, 20699684), (20, 10349842), (40, 5174921), (43, 4813880), (86, 2406940), (151, 1370840), (172, 1203470), (215, 962776), (302, 685420), (344, 601735), (430, 481388), (604, 342710), (755, 274168), (797, 259720), (860, 240694), (1208, 171355), (1510, 137084), (1594, 129860), (1720, 120347), (3020, 68542), (3188, 64930), (3985, 51944), (6040, 34271), (6376, 32465), (6493, 31880), (7970, 25972), (12986, 15940)]