1247389900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{2111}}^1$

素因数の和:2455

約数の個数: 72

約数和(自身を含む): 2859816960

約数和(自身を除く): 1612427060

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 311, 380, 475, 622, 950, 1244, 1555, 1900, 2111, 3110, 4222, 5909, 6220, 7775, 8444, 10555, 11818, 15550, 21110, 23636, 29545, 31100, 40109, 42220, 52775, 59090, 80218, 105550, 118180, 147725, 160436, 200545, 211100, 295450, 401090, 590900, 656521, 802180, 1002725, 1313042, 2005450, 2626084, 3282605, 4010900, 6565210, 12473899, 13130420, 16413025, 24947798, 32826050, 49895596, 62369495, 65652100, 124738990, 249477980, 311847475, 623694950, 1247389900]

約数ペア:

[(1, 1247389900), (2, 623694950), (4, 311847475), (5, 249477980), (10, 124738990), (19, 65652100), (20, 62369495), (25, 49895596), (38, 32826050), (50, 24947798), (76, 16413025), (95, 13130420), (100, 12473899), (190, 6565210), (311, 4010900), (380, 3282605), (475, 2626084), (622, 2005450), (950, 1313042), (1244, 1002725), (1555, 802180), (1900, 656521), (2111, 590900), (3110, 401090), (4222, 295450), (5909, 211100), (6220, 200545), (7775, 160436), (8444, 147725), (10555, 118180), (11818, 105550), (15550, 80218), (21110, 59090), (23636, 52775), (29545, 42220), (31100, 40109)]