20218993915

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1\times {\mathrm{2969}}^1$

素因数の和:3423

約数の個数: 32

約数和(自身を含む): 25206603840

約数和(自身を除く): 4987609925

約数列:

[1, 5, 37, 131, 185, 281, 655, 1405, 2969, 4847, 10397, 14845, 24235, 36811, 51985, 109853, 184055, 388939, 549265, 834289, 1362007, 1944695, 4171445, 6810035, 14390743, 30868693, 71953715, 109291859, 154343465, 546459295, 4043798783, 20218993915]

約数ペア:

[(1, 20218993915), (5, 4043798783), (37, 546459295), (131, 154343465), (185, 109291859), (281, 71953715), (655, 30868693), (1405, 14390743), (2969, 6810035), (4847, 4171445), (10397, 1944695), (14845, 1362007), (24235, 834289), (36811, 549265), (51985, 388939), (109853, 184055)]