28200795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{641}}^1$

素因数の和:1075

約数の個数: 32

約数和(自身を含む): 51770880

約数和(自身を除く): 23570085

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 419, 641, 1257, 1923, 2095, 2933, 3205, 4487, 6285, 8799, 9615, 13461, 14665, 22435, 43995, 67305, 268579, 805737, 1342895, 1880053, 4028685, 5640159, 9400265, 28200795]

約数ペア:

[(1, 28200795), (3, 9400265), (5, 5640159), (7, 4028685), (15, 1880053), (21, 1342895), (35, 805737), (105, 268579), (419, 67305), (641, 43995), (1257, 22435), (1923, 14665), (2095, 13461), (2933, 9615), (3205, 8799), (4487, 6285)]