6720105

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 12870144

約数和(自身を除く): 6150039

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 49, 105, 123, 147, 205, 223, 245, 287, 615, 669, 735, 861, 1115, 1435, 1561, 2009, 3345, 4305, 4683, 6027, 7805, 9143, 10045, 10927, 23415, 27429, 30135, 32781, 45715, 54635, 64001, 137145, 163905, 192003, 320005, 448007, 960015, 1344021, 2240035, 6720105]

約数ペア:

[(1, 6720105), (3, 2240035), (5, 1344021), (7, 960015), (15, 448007), (21, 320005), (35, 192003), (41, 163905), (49, 137145), (105, 64001), (123, 54635), (147, 45715), (205, 32781), (223, 30135), (245, 27429), (287, 23415), (615, 10927), (669, 10045), (735, 9143), (861, 7805), (1115, 6027), (1435, 4683), (1561, 4305), (2009, 3345)]