311762920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4993}}^1$

素因数の和:5234

約数の個数: 64

約数和(自身を含む): 805432320

約数和(自身を除く): 493669400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 223, 280, 446, 892, 1115, 1561, 1784, 2230, 3122, 4460, 4993, 6244, 7805, 8920, 9986, 12488, 15610, 19972, 24965, 31220, 34951, 39944, 49930, 62440, 69902, 99860, 139804, 174755, 199720, 279608, 349510, 699020, 1113439, 1398040, 2226878, 4453756, 5567195, 7794073, 8907512, 11134390, 15588146, 22268780, 31176292, 38970365, 44537560, 62352584, 77940730, 155881460, 311762920]

約数ペア:

[(1, 311762920), (2, 155881460), (4, 77940730), (5, 62352584), (7, 44537560), (8, 38970365), (10, 31176292), (14, 22268780), (20, 15588146), (28, 11134390), (35, 8907512), (40, 7794073), (56, 5567195), (70, 4453756), (140, 2226878), (223, 1398040), (280, 1113439), (446, 699020), (892, 349510), (1115, 279608), (1561, 199720), (1784, 174755), (2230, 139804), (3122, 99860), (4460, 69902), (4993, 62440), (6244, 49930), (7805, 39944), (8920, 34951), (9986, 31220), (12488, 24965), (15610, 19972)]