20188595

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:875

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 9671245

約数列:

[1, 5, 7, 23, 31, 35, 115, 155, 161, 217, 713, 805, 809, 1085, 3565, 4045, 4991, 5663, 18607, 24955, 25079, 28315, 93035, 125395, 130249, 175553, 576817, 651245, 877765, 2884085, 4037719, 20188595]

約数ペア:

[(1, 20188595), (5, 4037719), (7, 2884085), (23, 877765), (31, 651245), (35, 576817), (115, 175553), (155, 130249), (161, 125395), (217, 93035), (713, 28315), (805, 25079), (809, 24955), (1085, 18607), (3565, 5663), (4045, 4991)]