90936520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{20857}}^1$

素因数の和:20977

約数の個数: 32

約数和(自身を含む): 206494200

約数和(自身を除く): 115557680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 20857, 41714, 83428, 104285, 166856, 208570, 417140, 834280, 2273413, 4546826, 9093652, 11367065, 18187304, 22734130, 45468260, 90936520]

約数ペア:

[(1, 90936520), (2, 45468260), (4, 22734130), (5, 18187304), (8, 11367065), (10, 9093652), (20, 4546826), (40, 2273413), (109, 834280), (218, 417140), (436, 208570), (545, 166856), (872, 104285), (1090, 83428), (2180, 41714), (4360, 20857)]