30720795

素因数分解:

$3^1\times 5^1\times 7^4\times {\mathrm{853}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 57409296

約数和(自身を除く): 26688501

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 853, 1029, 1715, 2401, 2559, 4265, 5145, 5971, 7203, 12005, 12795, 17913, 29855, 36015, 41797, 89565, 125391, 208985, 292579, 626955, 877737, 1462895, 2048053, 4388685, 6144159, 10240265, 30720795]

約数ペア:

[(1, 30720795), (3, 10240265), (5, 6144159), (7, 4388685), (15, 2048053), (21, 1462895), (35, 877737), (49, 626955), (105, 292579), (147, 208985), (245, 125391), (343, 89565), (735, 41797), (853, 36015), (1029, 29855), (1715, 17913), (2401, 12795), (2559, 12005), (4265, 7203), (5145, 5971)]