1278365080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{2903}}^1$

素因数の和:3124

約数の個数: 64

約数和(自身を含む): 2932459200

約数和(自身を除く): 1654094120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 109, 202, 218, 404, 436, 505, 545, 808, 872, 1010, 1090, 2020, 2180, 2903, 4040, 4360, 5806, 11009, 11612, 14515, 22018, 23224, 29030, 44036, 55045, 58060, 88072, 110090, 116120, 220180, 293203, 316427, 440360, 586406, 632854, 1172812, 1265708, 1466015, 1582135, 2345624, 2531416, 2932030, 3164270, 5864060, 6328540, 11728120, 12657080, 31959127, 63918254, 127836508, 159795635, 255673016, 319591270, 639182540, 1278365080]

約数ペア:

[(1, 1278365080), (2, 639182540), (4, 319591270), (5, 255673016), (8, 159795635), (10, 127836508), (20, 63918254), (40, 31959127), (101, 12657080), (109, 11728120), (202, 6328540), (218, 5864060), (404, 3164270), (436, 2932030), (505, 2531416), (545, 2345624), (808, 1582135), (872, 1466015), (1010, 1265708), (1090, 1172812), (2020, 632854), (2180, 586406), (2903, 440360), (4040, 316427), (4360, 293203), (5806, 220180), (11009, 116120), (11612, 110090), (14515, 88072), (22018, 58060), (23224, 55045), (29030, 44036)]