18560425

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:250

約数の個数: 36

約数和(自身を含む): 26141184

約数和(自身を除く): 7580759

約数列:

[1, 5, 13, 23, 25, 65, 115, 169, 191, 299, 325, 575, 845, 955, 1495, 2483, 3887, 4225, 4393, 4775, 7475, 12415, 19435, 21965, 32279, 57109, 62075, 97175, 109825, 161395, 285545, 742417, 806975, 1427725, 3712085, 18560425]

約数ペア:

[(1, 18560425), (5, 3712085), (13, 1427725), (23, 806975), (25, 742417), (65, 285545), (115, 161395), (169, 109825), (191, 97175), (299, 62075), (325, 57109), (575, 32279), (845, 21965), (955, 19435), (1495, 12415), (2483, 7475), (3887, 4775), (4225, 4393)]